Electric Heated Seat Cushion USB Power Outdoor Camping Seat Cushion 3 Levels Heating Seat Cushion for Park Stadium Car Travel. Features: Intelligent Heating Zones, Dual Power Interfaces, Graphene Warmth, Comfortable & Non-Slip, Washable Convenience. Specification: Origin: Mainland China, Material: Polar Fleece + Fluffy Cotton + Sponge + Drop-Free Anti-Slip Cloth + Graphene, Color: Coffee, Gray, Size: Small 45*45cm/17.71*17.71in, Large 45*90cm/17.71*35.43in, Heating Element: Graphene Heating, Heating Sheet: 4 Zones, Temperature: Low Temperature 40℃ (±5℃), Medium Temperature 50℃ (±5℃), High Temperature 60℃ (±5℃), Power Supply Interface: Type-C/USB, Battery Life: Taking a 20000mAh power bank as an example, the high temperature can continue to heat for 8 hours, the medium temperature can continue to heat for 10 hours, and the low temperature can continue to heat for 12 hours.