The heated gloves are powered by USB 5V, the safety power supply is very user-friendly and easy to use, just plug it into your PC’s USB port, power bank, charger or 5V power supply. The heating pad is made of far infrared (far infrared carbon fiber), which is durable and efficient. Half-finger designed for typing or gaming, but the fingertips fold on the back, release the button to unfold the fingertips, keeping your fingertips warm when not typing. Use in winter or cold autumn in many occasions, suitable for gaming, typing, operating a mouse and many more other occasions such as work, play, skiing, cycling, hiking, outdoor exploration, etc.