Features: High Quality Materials: Super comfortable materials are used to bring comfort and excellent touch to the body in winter. Powerful Performance: The heated seat cushion can raise the temperature in a short time. In cold winter the seat warmer is a good companion. Wide Use of Applications: It is a perfect choice for uncomfortable seats for long distance cold travel camping or sports games. Perfect Design: The anti slip rubber at the bottom is specially designed to prevent slipping on all surfaces which can fix the heating pad on the chair and fix it perfectly. After Sales Service: Online customer support answer your questions and provide you with perfect solutions. Specifications: Name: Outdoor self inflating heating cushion Size: 30*40CM Color: Black outside camouflage inside Material: Waterproof oxford cloth anti-skid plastic fabric Voltage: 5V Power Supply: Use a 5V 2A power supply or a charging bank to supply power. Note that the power supply less than 2A will not be heated Interface: USB2.0 Cleaning: Surface cleaning Weight: 0.385KG Packaging: Single opp bag packaging Single Package Size: 32*14*11cm Notes: This cushion has two specifications: 1. Non adjustable (constant temperature no switch direct plug-in type) 2. With gear adjustment timing switch which can be switched adjusted timed and has three functions in one Service time of the power pack: the non adjustable inflatable cushion the middle adjustable inflatable cushion and the 10000MAH full capacity power pack can be used for about 5 hours when fully charged. includes: 1*Heated Seat Cushion "