Four massage points in the back and waist work with a handheld controller that lets you switch zones and set a timer while you play or work. The reclining backrest tilts from 110° to 130° so you can sit upright for focus or lean back to relax. An adjustable 19.5-in to 22-in seat height helps match different desk and monitor setups. The 31.5 x 31.5 x 40-in frame, class-4 gas lift and wide base support up to 352 lbs. A retractable footrest, removable headrest, cup holder and side pocket keep support and essentials close at hand.