{"product_id":"osaki-op-4d-master-floor-model","title":"Osaki OP-4D Master - Floor Model","description":"\u003c!-- more --\u003e\n\u003cdiv style=\"background: #fbf1e0; border: 1px solid #f0ddb8; border-left: 5px solid #c8861b; border-radius: 8px; padding: 1.3em 1.6em; margin: 0 0 1.6rem;\"\u003e\n\u003cspan style=\"display: block; font-size: 11px; font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #a8690f; margin-bottom: 0.35em;\"\u003eFloor Model — Only 1 Available\u003c\/span\u003e\n\u003ch3 style=\"margin: 0 0 0.5em; color: #1d2733;\"\u003eWhat to know before you buy\u003c\/h3\u003e\n\u003cp style=\"margin: 0;\"\u003eThis is a single showroom display unit in \u003cstrong\u003eBlack\u003c\/strong\u003e, offered as-is at a one-time special price. It may show light, normal signs of showroom handling — please contact us for additional photos of the actual chair before purchase. The full manufacturer's warranty still applies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"font-size: 1.05rem; line-height: 1.7;\"\u003e\u003cstrong\u003eThe Osaki OP-4D Master delivers precise, full-body relief with advanced 4D+ massage rollers, intelligent body scanning, and an ergonomic SL-Track design for consistent, deeply therapeutic results — this particular chair is a single showroom unit at a special floor-model price.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv style=\"border-radius: 14px; overflow: hidden; margin: 1.2rem 0 1.8rem;\"\u003e\u003cimg style=\"width: 100%; height: auto; display: block;\" alt=\"Osaki OP-4D Master floor model, black\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/Image_20260806_090452205088977407700264.jpg?v=1786059167\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 0 2rem;\"\u003e\n\u003cp\u003eAlleviate muscle tension, reduce stress, and promote relaxation using the Osaki Master 4D+. This revolutionary massage chair provides advanced features such as a thorough shoulder massage, muscle tension detection, and zero gravity positioning, which can be utilized with the Osaki Premium Master app or a call to Alexa.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- KEY HIGHLIGHTS --\u003e\n\u003ch2 class=\"section-header\"\u003eWhy You'll Love the OP-4D Master\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; gap: 2rem; flex-wrap: wrap; margin: 0 0 1.5rem; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 12px; padding: 1.5em 1.8em;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px;\"\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 1.5rem; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003e4D+ Massage Mechanism\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eThorough Shoulder Massage\u003c\/strong\u003e — 10 airbags\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eSL-Track\u003c\/strong\u003e — neck to hamstrings\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eMuscle Tension Detection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eAutomatic body scan\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eTouchscreen controller\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px;\"\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 1.5rem; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003e16 auto + 4 manual programs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eAttachable magnetic pillow\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eNegative oxygen ions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eLumbar \u0026amp; feet heating\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eExtendable footrest\u003c\/strong\u003e — up to 8\"\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eCalf \u0026amp; foot rollers\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px;\"\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 1.5rem; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eZero gravity + space saving\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eApp \u0026amp; Alexa voice control\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eBluetooth surround sound\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eLED mood lighting\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003ePhone charging \u0026amp; USB port\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e\u003cstrong\u003eSide control panel\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SIGNATURE PERSONALIZATION CARDS --\u003e\n\u003ch2 class=\"section-header\"\u003ePowered by Intelligent Personalization\u003c\/h2\u003e\n\u003cp\u003eWhat sets the OP-4D Master apart is how it adapts to you — three signature systems work together to tailor every session to your body.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; gap: 1rem; flex-wrap: wrap; margin: 0 0 2rem;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #1d2733; color: #cfd4da; border-radius: 10px; padding: 1.3em 1.5em;\"\u003e\n\u003cspan style=\"display: inline-block; background: #b08542; color: #ffffff; font-size: 11px; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.25em 0.6em; border-radius: 4px; margin-bottom: 0.6em;\"\u003eFirst-of-its-kind\u003c\/span\u003e\n\u003ch3 style=\"color: #ffffff; margin: 0 0 0.3em; font-size: 17px;\"\u003eThorough Shoulder Massage\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 14px; line-height: 1.55;\"\u003eThe first-ever over-the-shoulder massage using airbag compression that rotates and moves like real hands, with 10 individual airbags synchronized for a soothing massage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #1d2733; color: #cfd4da; border-radius: 10px; padding: 1.3em 1.5em;\"\u003e\n\u003cspan style=\"display: inline-block; background: #b08542; color: #ffffff; font-size: 11px; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.25em 0.6em; border-radius: 4px; margin-bottom: 0.6em;\"\u003eAI Scan\u003c\/span\u003e\n\u003ch3 style=\"color: #ffffff; margin: 0 0 0.3em; font-size: 17px;\"\u003eAutomatic Shoulder Adjustment\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 14px; line-height: 1.55;\"\u003eAn automatic body scan detects your shoulder height and width, then repositions the massage rollers for a more effective, personalized massage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #1d2733; color: #cfd4da; border-radius: 10px; padding: 1.3em 1.5em;\"\u003e\n\u003cspan style=\"display: inline-block; background: #b08542; color: #ffffff; font-size: 11px; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.25em 0.6em; border-radius: 4px; margin-bottom: 0.6em;\"\u003eHealth Pro\u003c\/span\u003e\n\u003ch3 style=\"color: #ffffff; margin: 0 0 0.3em; font-size: 17px;\"\u003eMuscle Tension Detection\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 14px; line-height: 1.55;\"\u003eThe Health Pro program detects tension in your torso and tailors a massage program to your specific needs, since every body is different.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"section-header\"\u003eEngineered for Total-Body Relief\u003c\/h2\u003e\n\u003c!-- SHOULDER MASSAGE --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master shoulder massage\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-shoulder-massage.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eShoulder Massage Nodes\u003c\/h3\u003e\n\u003cp\u003eAn extra massage node on each side of the shoulder pad emulates the feel of a hand massage, layering onto the airbag compression for a more complete shoulder session.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003e10 airbags  ·  Rotating motion  ·  Hand-like compression\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TOUCHSCREEN --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #000000; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master touchscreen controller\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-touch-screen-controller.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eTouchscreen Controller\u003c\/h3\u003e\n\u003cp\u003eThe swivel-mount touchscreen controller allows for easy navigation and adjustment, and can be conveniently positioned at different angles for effortless reach.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eSwivel mount  ·  Intuitive navigation  ·  Full control\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- APP \u0026 VOICE CONTROL --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master app control\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-app-control.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eApp \u0026amp; Smart Voice Control\u003c\/h3\u003e\n\u003cp\u003eDownload the Osaki Premium 4D+ Master app (iPhone or Android) to control the chair from your phone, or use Smart Voice Control — just say \"Alexa\" or \"Hi, Osaki\" followed by a command.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eiOS \u0026amp; Android app  ·  Alexa compatible  ·  Hands-free control\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SL-TRACK --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #000000; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master SL-Track\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-sl-track.jpg?v=1680738071\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003e4D+ SL-Track System\u003c\/h3\u003e\n\u003cp\u003eMade of laser-crafted steel, the SL-Track lets the 4D+ rollers freely reach your entire body — extending all the way from your neck and shoulders to your hamstrings, with 4 and 5 levels of intensity, strength and speed.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eNeck to hamstrings  ·  Laser-crafted steel  ·  Spot \u0026amp; full-back treatment\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ZERO GRAVITY --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #000000; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master zero gravity position\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-black-zero-g.jpg?v=1680805943\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eZero Gravity Reclining \u0026amp; Space Saving\u003c\/h3\u003e\n\u003cp\u003eEncounter relaxation in a state of weightlessness with NASA-inspired zero gravity reclining. Space Saving Technology lets the chair sit just 3 inches from the wall and still achieve a full recline.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eWeightless recline  ·  3\" from wall  ·  NASA-inspired\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- HEATING --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master lumbar and feet heating\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-heat-lumbar.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eLumbar \u0026amp; Feet Heating\u003c\/h3\u003e\n\u003cp\u003eBuilt-in heating coils warm the lower back and feet, effectively easing soreness and helping muscles relax more fully during your session.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eLower back \u0026amp; feet  ·  Heating coils  ·  Deeper relaxation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FOOTREST --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master extendable footrest\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-foot-rest-extension.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eExtendable Footrest\u003c\/h3\u003e\n\u003cp\u003eBuilt for users of different heights, the automatic spring-loaded footrest elongates up to 8 inches so the chair fits your body, not the other way around.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eUp to 8\" extension  ·  Spring-loaded  ·  Fits any height\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CALF \u0026 FOOT ROLLERS --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master calf and foot rollers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-foot-rollers.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eCalf \u0026amp; Foot Rollers\u003c\/h3\u003e\n\u003cp\u003eA sequence of kneading rollers moves vertically through the calves while airbag compression handles the rest, and specialized foot rollers activate acupuncture points along scientifically designed reflexology ridges — three rollers per foot, heel to toe.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eKneading rollers  ·  Air compression  ·  Reflexology ridges\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- MAGNETIC PILLOW --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master magnetic pillow\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-side-pillow.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eAttachable Magnetic Pillow\u003c\/h3\u003e\n\u003cp\u003eAttach the magnetic pillow to the side of the chair before starting a massage to receive a more complete, properly positioned shoulder massage.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eMagnetic attachment  ·  Side-mounted  ·  Optimized shoulder fit\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- NEGATIVE OXYGEN IONS --\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 2.6rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #f4f4f2; border: 1px solid rgba(0,0,0,0.06); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master negative oxygen ionization\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-negative-oxegen.jpg?v=1680738072\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003ch3\u003eNegative Oxygen Ions\u003c\/h3\u003e\n\u003cp\u003eBuilt-in negative air ionization therapy is incorporated throughout the chair. Research suggests negative air ionization therapy can help relieve stress and improve energy.\u003c\/p\u003e\n\u003cp style=\"margin: 0.5rem 0 0; font-size: 13px; color: #8a8f96; letter-spacing: 0.02em;\"\u003eBuilt-in ionizer  ·  Stress relief  ·  Improved energy\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ALSO INCLUDED --\u003e\n\u003ch2 class=\"section-header\"\u003eAlso Included\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; gap: 1.5rem; flex-wrap: wrap; margin: 0 0 2rem;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 150px; text-align: center; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 10px; padding: 1.2em 0.8em;\"\u003e\n\u003cimg style=\"width: 56px; height: 56px; object-fit: contain; margin: 0 auto 0.6em;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-side-control.jpg?v=1680738072\" alt=\"Side control panel\"\u003e\u003cdiv style=\"font-size: 13px; font-weight: 600;\"\u003eSide Control Panel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 150px; text-align: center; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 10px; padding: 1.2em 0.8em;\"\u003e\n\u003cimg style=\"width: 56px; height: 56px; object-fit: contain; margin: 0 auto 0.6em;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-phone-charging-pad.jpg?v=1680738072\" alt=\"Phone charging surface\"\u003e\u003cdiv style=\"font-size: 13px; font-weight: 600;\"\u003ePhone Charging Surface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 150px; text-align: center; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 10px; padding: 1.2em 0.8em;\"\u003e\n\u003cimg style=\"width: 56px; height: 56px; object-fit: contain; margin: 0 auto 0.6em;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-usb-port.jpg?v=1680738072\" alt=\"USB charging port\"\u003e\u003cdiv style=\"font-size: 13px; font-weight: 600;\"\u003eUSB Charging Port\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 150px; text-align: center; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 10px; padding: 1.2em 0.8em;\"\u003e\n\u003cimg style=\"width: 56px; height: 56px; object-fit: contain; margin: 0 auto 0.6em;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-bluetooth-speakers.jpg?v=1680805850\" alt=\"Bluetooth surround sound\"\u003e\u003cdiv style=\"font-size: 13px; font-weight: 600;\"\u003eBluetooth Surround Sound\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 150px; text-align: center; background: #f7f5f1; border: 1px solid #ece7dd; border-radius: 10px; padding: 1.2em 0.8em;\"\u003e\n\u003cimg style=\"width: 56px; height: 56px; object-fit: contain; margin: 0 auto 0.6em;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/osaki-op-4d-master-feature-led-mood-lighting.jpg?v=1680738071\" alt=\"LED mood lighting\"\u003e\u003cdiv style=\"font-size: 13px; font-weight: 600;\"\u003eLED Mood Lighting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FINISH --\u003e\n\u003ch2 class=\"section-header\"\u003eFinish\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; gap: 2.5rem; flex-wrap: wrap; align-items: center; margin: 0 0 1rem;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; max-width: 420px;\"\u003e\n\u003cdiv style=\"aspect-ratio: 3\/2; background: #1c1c1e; border: 1px solid #eee; border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center;\"\u003e\u003cimg style=\"max-width: 90%; max-height: 90%; object-fit: contain; display: block;\" alt=\"Osaki OP-4D Master floor model in Black\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/Image_20260806_0905106363339635174580598.jpg?v=1786059167\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 320px;\"\u003e\n\u003cp\u003eFinished in durable synthetic leather with a sleek, modern silhouette. Because this is a single floor model, it's only available in the color shown — \u003cstrong\u003eBlack\u003c\/strong\u003e — and isn't available in any other finish.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; gap: 1.5rem; flex-wrap: wrap; margin: 1rem 0 0;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"width: 46px; height: 46px; border-radius: 50%; background: #1c1c1e; border: 1px solid #ddd; margin: 0 auto 0.4em;\"\u003e\u003c\/div\u003e\n\u003cspan style=\"font-size: 13px;\"\u003eBlack — as shown\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-content\" id=\"specs\"\u003e\n\u003ch3\u003ePRODUCT SPECIFICATIONS\u003c\/h3\u003e\n\u003ch4\u003eMassage Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4D+ Massage Mechanism\u003c\/strong\u003e - Four levels of intensity, five levels of strength and speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended SL-Track System\u003c\/strong\u003e - Neck to hamstrings coverage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThorough Shoulder Massage\u003c\/strong\u003e - 10-airbag rotating compression, first of its kind\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Shoulder Adjustment\u003c\/strong\u003e - Body scan-driven roller positioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuscle Tension Detection\u003c\/strong\u003e - Health Pro AI-tailored programs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 Auto Massage Modes + 4 Manual Modes\u003c\/strong\u003e - Kneading, tapping, shiatsu, rolling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAir Massage \u0026amp; Heat System\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e46-Cell Full Body Massage\u003c\/strong\u003e - Comprehensive compression therapy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLumbar \u0026amp; Feet Heating\u003c\/strong\u003e - Built-in heating coils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalf \u0026amp; Foot Rollers\u003c\/strong\u003e - Kneading rollers plus reflexology ridges, 3 rollers per foot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative Oxygen Ions\u003c\/strong\u003e - Built-in air ionization therapy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eComfort \u0026amp; Positioning\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Gravity Reclining\u003c\/strong\u003e - NASA-inspired weightless positioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace Saving Technology\u003c\/strong\u003e - Full recline just 3\" from the wall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtendable Footrest\u003c\/strong\u003e - Automatic spring-loaded, up to 8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttachable Magnetic Pillow\u003c\/strong\u003e - Side-mounted for optimized shoulder fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Mood Lighting\u003c\/strong\u003e - Ambient atmosphere control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnology Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTouchscreen Controller\u003c\/strong\u003e - Swivel-mount, adjustable angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp Control\u003c\/strong\u003e - Osaki Premium 4D+ Master app (iOS \u0026amp; Android)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Voice Control\u003c\/strong\u003e - Alexa or \"Hi, Osaki\" voice commands\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSide Control Panel, Phone Charging Surface \u0026amp; USB Port\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBluetooth Surround Sound\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDimensions \u0026amp; Delivery\u003c\/h4\u003e\n\u003cdiv class=\"adj-contain\"\u003e\n\u003cdiv class=\"col-one\"\u003e\n\u003ch5\u003eUPRIGHT DIMENSIONS:\u003c\/h5\u003e\n\u003cp\u003e68\"L x 30.5\"W x 50.5\"H\u003c\/p\u003e\n\u003ch5\u003eRECLINED DIMENSIONS:\u003c\/h5\u003e\n\u003cp\u003e72\"L x 30.5\"W x 42\"H\u003c\/p\u003e\n\u003ch5\u003eSEAT WIDTH:\u003c\/h5\u003e\n\u003cp\u003e18\"W\u003c\/p\u003e\n\u003ch5\u003eSHOULDER WIDTH:\u003c\/h5\u003e\n\u003cp\u003e24.5\"W\u003c\/p\u003e\n\u003ch5\u003eDISTANCE TO WALL:\u003c\/h5\u003e\n\u003cp\u003e3\"\u003c\/p\u003e\n\u003ch5\u003eWEIGHT:\u003c\/h5\u003e\n\u003cp\u003e211.6 lbs Net\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-two\"\u003e\n\u003ch5\u003eMINIMUM DOOR CLEARANCE:\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e30.5\" Door Width REQUIRED for Delivery\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5\u003eAUTOMATIC PROGRAMS:\u003c\/h5\u003e\n\u003cp\u003e16\u003c\/p\u003e\n\u003ch5\u003eMANUAL PROGRAMS:\u003c\/h5\u003e\n\u003cp\u003e4\u003c\/p\u003e\n\u003ch5\u003ePROGRAM RUN TIME:\u003c\/h5\u003e\n\u003cp\u003e15 Minutes\u003c\/p\u003e\n\u003ch5\u003eRECOMMENDED USER HEIGHT:\u003c\/h5\u003e\n\u003cp\u003e5'0\"—6'2\"\u003c\/p\u003e\n\u003ch5\u003eUSER WEIGHT LIMIT:\u003c\/h5\u003e\n\u003cp\u003e260 lbs\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"btn_adj_man\" style=\"margin-top: 1em;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/WEB_VERSION_Updated_manual_for_4D_Master_20230303.pdf?v=1680805243\" rel=\"noopener\" target=\"_blank\"\u003eUser Guide (PDF)\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Osaki","offers":[{"title":"Black","offer_id":52170212770012,"sku":"OP-4D-Master-FLOOR-BLACK","price":4999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1835\/3687\/files\/Image_20260806_090452205088977407700264.jpg?v=1786059167","url":"https:\/\/www.massagechairplanet.com\/products\/osaki-op-4d-master-floor-model","provider":"MassageChairPlanet.com","version":"1.0","type":"link"}