Features13 GEARS: 3 gears temperature control, 50 degree centigrade, 59 degree centigrade, 65 degree centigrade, you can choose the temperature according to yours needs. 2PORTABLE: It is portable and lightweight, making it easy to carry around and store. You can use it at home, office, car, or outdoor activities, like camping or hiking. 3USB CHARGING: It is powered by USB, which means you can connect it to different devices, such as power bank, laptop, or USB adapter. It is convenient and energy efficient. 4EASY TO CLEAN: Detachable cloth cover, easy to clean. Support water washing, not long time high temperature exposure, safe, durable, and long lasting. 5APPLICATION: Suitable for many scenes: home, office, hunting, fishing, camping. Features a soft and comfortable cushioning that provides extra support and relaxation to your body.SpecificationItem Type: Heated CushionMaterial: PolyesterSize: Approx. 40 x 34cm / 15.75in x 13.39in (please allow 2-3cm error due to manual measurement)Temperature control: 3 gearsTemperature: 50 degree centigrade, 59 degree centigrade, 65 degree centigrade (because the measurement method, wind speed, sealing degree, room temperature, height and so on will lead to the actual temperature may have 3-5 degree centigrade error)Package List1 x Heated Cushion 1 x Instruction Book