Features: Built-in large-capacity-battery ensures lasting use. Low noise construction offers ease of use at home, office, gym and more. Ergonomically designed grips minimize external-vibrations. Double-bearing rotating structure provides strong and surging power. Helps to release fatigue and relieve pain in the muscles. Including 4 different massage head, meeting various demand. Button Control- For ON/OFF and speed switch, simple & convenient. 4 Hours Run Time- Energy-saving, can use longer per full charge. 6 Levels of Speed- Able to meet different levels of myofascial massage.15 min Auto-Off- Avoid overuse and overheat, ensures your safety. 35db-50db - Low noise, ensures you a quiet and comfortable environment. More- High powerful brushless motor, Ergonomic, and sweat-proof handles, 4 Replaceable massage heads.