Features 【Safe to use】Safe and easy to use, can be sewing onto any cloth or seat cover. It is easy to clean and can be washed with water. 【Convenient power supply】Convenient to power, just connect it to USB port of computer, power bank, or power adapter of 5V, 2A.Comes with a 1.5meter extension USB cable so you will not worry about cable length. 【Applicable to】Widely used for warming shoulder, neck, waist, back, abdomen and cushion or pet bed. 【Kind tips】 If it is exposed in the air or placed on the table to test the temperature, a little bit of heat will be dissipated. 【Using method】1: A piece of quilted jacket, bath towel, etc. find and place the heating pad (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.3: As the heating time increases, the temperature in the padded jacket will continue to increase and the expected temperature is usually about approx. It will be reached within 10 minutes. Features: Material: Carbon fiber Color: Black Maximum Voltage: 5V Connector: USB Pad Size: Approx. 23 x 29cm/9.05 x 11.41" Cable Length: 1.5M/59" Temperature: 35°C -50°C (after 20 minutes~40 minutes) Application Range: 1. Customers using it on their clothes, let them put it on their clothes to test the temperature.2. For pets such as cats and dogs, you can put the temperature probe in the middle of the heating pad to test the temperature, then the pet will not emit heat when lying on it and the temperature will increase.3. For solid products, wrap the heating pad on the product first to prevent heat dissipation, and then wrap a layer of foam paper or thermal insulation cotton on the outside. Package Content: 1 x Heating Pad 1 x USB Cable Note: 1. If this heating pad is used on clothes, quilt or pillow, the temperature may be 40~45°C after 20 minutes. If there is no cover, the temperature may only be 35°C after 30 or 40 minutes (from room temperature >10°C). 2. If the USB output interface the customer uses does not reach 2A, the switch cannot be turned on.3. If the customer is using 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 the customer is using does not reach the output power on the product label. It is recommended to use another power supply device. Package List