{"product_id":"mt339-4d-massage-chair-full-body-recliner-ota-update-deep-black","title":"MassaMAX MT339 4D Massage Chair with 53-Inch SL-Track, 32 Airbags, OTA Program Updates, 3-Stage Zero Gravity, App and Voice Control, and Graphene Lumbar Heat","description":"\u003cp dir=\"ltr\"\u003eThe MassaMAX MT339 is a full-body massage chair built around a 4D roller mechanism with four depth settings that travels a 53-inch SL-shaped track from the neck down the back and under the seat to the thighs. A body scan detects shoulder position before each session and adjusts roller placement and back width for users from 5 feet to 6 feet 3. What sets the MT339 apart from similar chairs is that its program library is not fixed: 22 auto programs are built in, 5 more download over the air from MassaMAX's cloud server, and the manufacturer adds new sequences to the library periodically, so the chair's program count grows after purchase.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eEleven manual techniques cover kneading, two tapping speeds, knead-and-tap, two shiatsu modes, grasp, and four 4D depth levels. Thirty-two airbags at the shoulders, arms, buttocks, calves, and feet apply compression at three pressure levels, and foot rollers work the soles while calf airbags wrap the legs. A graphene heating panel warms the lower back. The footrest extends automatically to leg length, and a stretch program coordinates the backrest and footrest to pull the body through a yoga-style stretch.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThree zero-gravity stages progressively raise the legs to and above heart level, and a space-saving track lets the chair recline fully with just under 2 inches of clearance behind it. Controls are on a 7-inch backlit touchscreen mounted on a flexible arm beside the chair, a quick-access dial on the armrest, the MassaMAX app, and built-in voice commands. The chair includes a Bluetooth speaker in the headrest and an LED accent strip on each side panel. Upholstery is polyurethane leather in deep black; other colorways are sold separately.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAuto programs (27): 22 built in plus 5 via OTA download, in six series: Smart (5), Health Care (5), Relaxation (5), VIP (4), Special (3), and Online (5).\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eManual techniques (11): kneading, tapping I and II, knead-and-tap, shiatsu I and II, grasp, 4D I through IV.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eMassage system:\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e4D roller mechanism, 4 depth levels\u003c\/li\u003e\n\u003cli\u003e53.15 in SL-track, neck to thighs\u003c\/li\u003e\n\u003cli\u003eBody scan with shoulder detection and back-width adjustment\u003c\/li\u003e\n\u003cli\u003e22 built-in auto programs plus 5 OTA programs; library expandable via cloud updates\u003c\/li\u003e\n\u003cli\u003e11 manual techniques\u003c\/li\u003e\n\u003cli\u003e32 airbags: shoulders, arms, buttocks, calves, feet; 3 pressure levels\u003c\/li\u003e\n\u003cli\u003eGraphene lumbar heat\u003c\/li\u003e\n\u003cli\u003eFoot rollers\u003c\/li\u003e\n\u003cli\u003eAutomatic extendable footrest\u003c\/li\u003e\n\u003cli\u003eYoga stretch program\u003c\/li\u003e\n\u003cli\u003e3-stage zero-gravity recline\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eControls and features:\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e7 in backlit touchscreen on flexible arm\u003c\/li\u003e\n\u003cli\u003eArmrest quick-access dial\u003c\/li\u003e\n\u003cli\u003eMassaMAX app\u003c\/li\u003e\n\u003cli\u003eVoice control\u003c\/li\u003e\n\u003cli\u003eOver-the-air program updates\u003c\/li\u003e\n\u003cli\u003eBluetooth speaker in headrest\u003c\/li\u003e\n\u003cli\u003eLED side accent lighting\u003c\/li\u003e\n\u003cli\u003ePolyurethane leather upholstery, deep black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eFit and installation:\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eUser height: 5 ft 0 in to 6 ft 3 in\u003c\/li\u003e\n\u003cli\u003eWeight capacity: 330 lbs\u003c\/li\u003e\n\u003cli\u003eSeat width: 21 in\u003c\/li\u003e\n\u003cli\u003eWall clearance: 1.97 in\u003c\/li\u003e\n\u003cli\u003eMinimum door width: 29.92 in\u003c\/li\u003e\n\u003cli\u003ePower: 110 to 120V, 60 Hz, 120 W; standby 0.1 to 1 W\u003c\/li\u003e\n\u003cli\u003eAir pressure: 0.025 to 0.03 MPa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eDimensions and weight:\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eUpright: 29.92 in W x 60.63 in L x 44.57 in H\u003c\/li\u003e\n\u003cli\u003eReclined: 29.92 in W x 68.5 in L x 34.65 in H\u003c\/li\u003e\n\u003cli\u003eChair weight: 192 lbs\u003c\/li\u003e\n\u003cli\u003eShipping: 236 lbs; box 63.38 in L x 30.31 in W x 33.46 in H\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eWarranty: 3-year warranty.\u003c\/p\u003e","brand":"Thrive Sector","offers":[{"title":"Deep Black","offer_id":50517859041515,"sku":"426bc6c5-0b03-4c4a-97ec-83a7144649b0","price":2446.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/3007\/7675\/files\/def0a231f7a552d687144c6fa019b354.jpg?v=1790206965","url":"https:\/\/thrivesector.com\/products\/mt339-4d-massage-chair-full-body-recliner-ota-update-deep-black","provider":"Thrive Sector","version":"1.0","type":"link"}