This is the only portable folding chair with a heated seat. Undetectable carbon fiber heating elements woven into the chair heat from 120º F to 140º F to warm your legs and posterior. The built-in rechargeable battery powers the heating elements for up to four hours on the lowest setting and up to 2 1/2 hours on high. A tray with an integrated cup holder folds out from an armrest and three pockets on the side of the chair accommodate reading material, snack food, and more. Unlike lesser portable chairs that sag as you sit, this one's seat and backrest remain taut, providing support and comfort during prolonged sitting. The chair's durable aluminum frame and 600-denier seat and backrest support up to 275 lbs. Battery recharges in two hours via AC or automobile outlet (adapters included). 35 1/2" H x 21" W x 14" D. (9 lbs.)