Handheld Massage Gun employs a low-noise brushless motor with large capacity battery to provide strong percussion to muscle soreness, releasing muscle energy. With 4 different interchangeable massage heads and 3 massage strengths, the massage gun will activate your muscles when warming up, get into exercise state as fast as possible, and relieve muscle pain when relaxing. Massager working time is up to 4 hours and the charging time is 3-4 hours. Includes USB to USB-C cable. FCC certified.