Features 1、Applicable Scope: This electric heating pad can be used to warm shoulders, neck, waist, back and abdomen, also can heat cushion or pet bed, need input DC 5V to heat. 2、Adjustable Temperature: The USB heating pad supports 3 levels temperature adjustment, the temperature range is 30‑50℃, and the switch light changes with the temperature level. 3、Excellent Materials: The heating pad is made of carbon fiber and non woven fabric, which is waterproof and resistant to bending, can also be wiped directly with damp cloth. 4、Efficient Heating: The internal temperature of the heating sheet will continue to increase with the heating time, usually reaching the expected temperature in about 10 minutes. 5、For Household Use: This electric heating pad is perfect for home use, easy to maintain, with stable performance, fast heating and maintain high temperature to help relieve body pain. Specification Item Type: Electric Heating Sheet Material: Carbon Fiber, Non Woven Fabric Supply Voltage: DC 5V Product Size: Approx. 2Pcs: Size: 10 x 18mm / 0.4 x 0.7in (without wire), 1Pc: Size: 20 x 20mm / 0.8 x 0.8in (without wire) Temperature: High temperature 45-50℃, medium temperature 35-40℃, low temperature 30-35℃ (3 levels adjustable) Switch Light: High temperature red light, medium temperature white light, low temperature blue light Package List 1 x Electric Heating Sheet