Feature: 1. Quick Heating: Powered by DC 5V USB, the heating pad ensures quick heating, which will get to the set temperature within 10 minutes. 2. More Comforts: Suits for shoulder, neck, waist, back and so on, the heat pad can maintain the high temperature for comfortable use. 3. Better Design: Designed to have a large size of 30 x 30cm, the heater pad also enables 3 gear temperature adjustment for enjoyments. 4. Broad Utility: Can be widely applied as pet bed, chair cushion, heating layer sewn into the jacket and more, satisfying your needs. 5. Flexible Uses: Allows for easy folding and washing by water, the heat pad made from carbon fibre is very convenient to maintain. Specification: Item Type: Heating Pad Material: Carbon Fibre Supply Voltage: DC 5V Product Size: Approx. 30 x 30cm / 11.81 x 11.81in(without wire) Thermostat Cable Length: Approx. 155cm / 5.09ft Temperature: 3 gears adjustable, 45-50℃ high temperature, 35-40℃ medium temperature, 30-35℃ low temperature. Package List: 1 x Heating Pad 1 x Temperature Controller Note: There may be size error.