Features: 1. FAST HEATING 5V low voltage heating, safe and reliable. The seat cushion for the car heater only takes 30 seconds to heat up quickly and evenly. This heated seat cushion promotes blood circulation, relaxes your body and keeps your muscles warm in cold weather. 2. PLUG AND PLAY With a practical USB interface, this seat cushion can be used to heat the car in order to supply the USB socket with power via the cigarette lighter in the car. The seat cushion for the heating can be supplied with power at home and in the office via the computer or mobile phone charger. 3. INTELLIGENT TEMPERATURE CONTROL The USB heating pad for cars is equipped with a temperature control chip. The temperature of the heated seat cushion reaches 45 degrees Celsius to start heating and 65 degrees Celsius to automatically turn off the power. 4. SAFE AND WARM MATERIALS The front of the heating pad is made of breathable heat-dissipating material and the bottom is made of soft silicone anti-slip particles to ensure that the heating pad does not move or slide off. 5. Safe and reliable Alloy heating wire, intelligent temperature control, antifreeze wire, switch plug, high temperature plug, anti-slip back, plush fabric, easy to install. Specification Fabric: fiber fabric Bottom fabric: soft, non-slip silicone cloth Size: 47x47cm Application: car, home, office Color: gray Heating method: USB interface Package Contents: 1 * USB heater small square pillow chair cushion