Rotai M320 Office Massage Chair

The Rotai M320 is an ergonomic office chair with a back massage built in. Kneading heads travel 744 mm along a flexible track, from the lower back up to the shoulder blades, and retract into the base of the backrest when you just want to sit and work. For a break, the backrest and seat recline together up to 145° and the built-in leg rest extends. Two heat levels, three auto programs and a removable 3000 mAh battery let you use the massage at your desk or away from a socket for 90+ minutes. KEY FEATURES Walking massage: kneading heads travel 744 mm, from the lumbar area to the shoulder blades Flexible track that follows the natural curve of your back Hidden when not in use: the massage heads retract into the base of the backrest One-piece ergonomic backrest with reinforced neck and lumbar zones, adjustable up/down and front/back 2 heat levels: 40 °C and 45 °C, about 5 minutes to warm up 3 auto programs (full back, upper back, heat only) plus a 5-minute spot massage Stepless recline from 95° to 145° with linked seat and a built-in leg rest One control under the seat for seat height (8 cm range) and recline 3D armrests: 80 mm lift, 50 mm forward/back, 35° tilt, 75° rotation 3000 mAh removable battery: 90+ minutes cord-free; magnetic adapter lets you use it while charging Breathable mesh back and dense high-resilience foam seat Three physical buttons (Power, Mode, Heat), no app needed SPECIFICATIONS Specification Details Model M320 Colour Grey Product Type Office massage chair Massage Mechanism Walking kneading on a flexible track Track Travel 744 mm, lumbar to shoulder blade Massage Heads Hidden in the base of the backrest when not in use Auto Programs 3: full back, upper back, heat only Spot Massage Double-press Mode: 5 minutes on one point Heating 2 levels: 40 °C and 45 °C, about 5 minutes to warm up Backrest One-piece ergonomic frame that follows the spine's S-curve Neck & Lumbar Support Reinforced, adjustable up/down and front/back Recline Stepless, 95° to 145°, backrest and seat move together Leg Rest Built in, extends as you recline Seat Height Adjustment 8 cm range, from one control under the seat Armrests 3D: 80 mm lift, 50 mm forward/back, 35° tilt, 75° rotation Back Upholstery Breathable high-resilience mesh Seat Cushion Dense high-resilience foam Battery 3000 mAh, removable Cord-Free Runtime 90+ minutes Charging Magnetic adapter (massage works while charging) or charging port (charge only) Power Bank Works with any 5 V / 2 A power bank Low-Battery Indicator Mode key glows red below 20% Controls Physical buttons: Power, Mode, Heat (no app) Load Rating 124.7 kg (275 lbs) Warranty 2 years FAQ Does the Rotai M320 work without a cable? Yes. A removable 3000 mAh battery runs the massage for 90+ minutes cord-free. You can also run it plugged in at your desk. Can I use the massage while it is charging? Yes, with the magnetic adapter. The charging port is for charging only: the massage pauses while it is plugged in, then resumes where it stopped. Can I charge it with a power bank? Yes. Any 5 V / 2 A power bank can recharge the battery. How far does the chair recline? Stepless from 95° to 145°. The backrest and seat move together, and the built-in leg rest extends as you recline. Does it have heat? Yes, two levels: 40 °C with a short press and 45 °C when you press again. It takes about 5 minutes to reach temperature. Will I feel the massage heads when the massage is off? No. The massage heads retract into the base of the backrest, so it sits like a normal ergonomic chair. What is the load rating? 124.7 kg (275 lbs). What warranty does it come with? 2 years.