Descriptions: This USB heater pad can be washed, bent, rubbed, folded to use. Mainly used for neck, lumbar, back, abdomen, waist heating, cushion, pet bed heating, etc. Small size, light and easy to carry. Features:Can be washed, bent, rubbed, stitched on clothes. Can be used for neck, back, abdomen, lumbar heating. Silicone switch, waterproof, can be fixed around the sewing. Third gear thermostat, the temperature can be free to choose. Press and hold for 5 seconds to turn on the switch. Small size, light and easy to carry. Specifications: Material: Carbon fiberRoom temperature resistance: 6 ()Maximum voltage: 5 (V)Thickness: 1 (mm)The main purpose: Cushion clothing fever tabletsScope of application: 35-50 degreesSize: 23.3 x 29cm/ 9.17 x 11.4inchLine length: 1.5 meters/59.06inchSwitch: Silicone third gear thermostatColor:BlackHow To Use:1: Find a piece of quilted jacket, bath towel, etc., and put the heating pad in (fold it in half or flat, if you want to test the temperature, you can put the temperature probe on the heating pad).2: The heater is connected to the 5V2A USB output interface (if it is a switch model, please turn on the switch).3: The temperature in the padded jacket will continue to rise as the heating time increases, and the expected temperature will generally be reached in about 10 minutes.Attention: If it is exposed in the air or placed on the table to test the temperature, a little bit of heat will be dissipated.4. How to open the square switch model: Turn on the power, press and hold for 5 seconds, the red indicator light is always on, which means the heating element is already heating. If you want to adjust the gear, just press it once, and the temperature of the switch light is different. Three gears of temperature: red high temperature / white medium temperature / blue low temperatureApplication Range:1. Customers who use it in their clothes, let them put them in their clothes to test the temperature.2. For pets, such as cats and dogs, you can put the temperature probe to test the temperature in the middle of the heating pad, then the pet will not radiate heat when lying on it, and the temperature will rise.3. For solid products, wrap the heating pad on the product first, and then wrap a layer of foam paper or thermal insulation cotton on the outside to prevent heat dissipation.Package Included: 1 x USB Electric Cloth Heater Note:1. Only In insulation environment such as sewing clothes or pillow quilt covered case, will beheated to 35-50 degrees, the heating time in 20-40 minutes.2. If the USB output interface used by the customer does not reach 2A, the switch cannot be opened.3. If the customer uses the power bank or power adapter, the switch can be turned on, but it will automatically turn off after about 10 minutes, because the power bank or power adapter used by the customer does not reach the output power on the product label. It is recommended to change to other power supply device..