Features Safe and easy to use, can be sewing onto any cloth or seat cover. Convenient to power, just connect it to USB port of power bank, or power adapter of 5V 2A. The heating pad is foldable and not easy to deform.It is easy to clean and can be washed with water. The timer function is about 30 minutes, and the temperature is about 45℃‑50℃. Widely used for warming shoulder, neck, waist, back, abdomen and cushion or pet bed. Specification:Material: Carbon fiber, flannelette Voltage: 5VCurrent: 2AConnector: USBSwitch: 3-mode adjustable temperature, timer Pad Size: Approx. 24 x 30cm / 9.5 x 11.8inTemperature: About 45℃Weight: 119g / 4.2oz (approx.)The timer function is about 30 minutes Keep the temperature at 45℃-50℃ How 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, put the temperature probe on the heating pad). 2: The heating pad is connected to the 5V2A USB output interface, three gears temperature: the indicator light displays. 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. Package list:1 x Heating Pad Note:1. Please note that the current of the USB output interface used must reach 2A or more.2. If the customer uses a power bank or power adapter, the switch can be turned on, but it will automatically turn off after about 10 minutes. This is because the power bank or power adapter used by the customer does not reach the output power product label. It is recommended to use other power supplies. Package List