ITEM NAME:USB Electric Heating Pad 3 Gear Adjustable Thermal Clothing Heated Vest Warm Feature: The heating pad is soft, comfortable, insulated, and washable Temperature controled and adjusted by 3 gears. Red light: high temperature about 45℃; White light: middle temperature about 40-45℃; Blue light: low temperature about 30-40℃ Specifications: Voltage: 5V Current: 2A Power: 8.5 watt Three gear temperature: 30 - 45 degree (Celsius) Size: 40*41cm / 15.7*16.1inch Impedance: 8Ω Material: alloy fiber Thickness: 1mm Note: 1. May not allow the use of self care, baby or heat insensitive. 2. No needling knife to heat the heat line inside the heating cloth, no one in the room strictly prohibit the use of electricity. 3. Should not be used in a wet environment. Please dry it before use. 4.Switch timing use: in the open state, the length of the open key is 3 seconds to enter the 30 minute time, the current indicator light flicker. Package Included: 1x Electric Heating Pad.The heating pad is soft, comfortable, insulated, and washable. 1x Electric Heating Pad. No needling knife to heat the heat line inside the heating cloth, no one in the room strictly prohibit the use of electricity.