Rechargeable knee pad with upgraded controller: A built-in 3000mAh battery allows the heated knee pad to last for 7080 minutes at its highest temperature (70C). The upgraded controller features a three-digit display that switches between Celsius and Fahrenheit temperature displays (simply press the heating and timer buttons simultaneously for 5 seconds to switch). Operation is incredibly simple! Includes a USB Type-C cable. Adjustable straps for a secure fit: Adjustable straps ensure a comfortable and secure fit, firmly holding the knee pad in place. The multi-functional heating pad easily wraps around and locks in place around the knee, and can also extend to the thigh, calf, arm, and leg. Comfortable materials: Made from durable materials that can withstand up to 200 pulls/tears while maintaining strong adhesion. Double stitching makes it both aesthetically pleasing and durable. Wireless design: This knee heating pad is portable and easy to use, requiring no power cord. You can move freely and enjoy warmth anytime, anywhere. This heated knee pad is perfect for use at home or in the office. Whether gifted to parents, friends, or loved ones, this is an ideal choice for any special occasion. Multiple adjustable heating levels: The temperature of this heated knee brace can be adjusted between 45C and 70C. Temperature is adjusted in 5-degree increments, allowing users to experience the most comfortable temperature.