●COLEMAN ONESOURCE: Power your outdoor gear and devices with one interchangeable rechargeable battery system ●HEATED SEAT CUSHION: 4 adjustable heat settings; one fully charged 4800 mAh lithium-ion battery keeps the heat going for 1.5 hours on high (133°F), 2 hours on medium (123°F), 3 hours on low (113°F), or 2.5 hours on pulse setting (low to high) ●DUAL PORT DOCK & DEVICE CHARGING: Battery dock on the side holds up to 2 rechargeable lithium-ion batteries (2nd battery sold separately), doubling the runtime; also charges your phone or other devices ●FOLDABLE FRAME: Seat folds in half for easy storage; back metal support bar can double as a carry handle to the bleachers or sidelines ●WEATHER RESISTANT: Steel frame plus weather-resistant fabric and nontoxic PU coating help protect against water and rain ●BLEACHER HOOK: Wraps around the base of bleacher adding stability? to the seat while cheering on your team. Carry bag included ●1-YEAR LIMITED WARRANTY (Seat); 3-YEAR LIMITED WARRANTY (Battery)