Overviews: 1. There are 3 different massage heads to meet different needs. 2. Effectively reduce muscle stiffness and soreness and promote blood circulation. 3. With over-protection, overheating protection and other safety protection devices, it is safe to use. 4. It is suitable for recovery after exercise fatigue, rehabilitation after a sports injury, pain relief during the operation recovery period, and alleviation of inflammatory response. Product information: Motor type: brushless motor Endurance: 4-8 hours Power supply: USB Features: hot compress, Mini portable, multi-gear adjustment, low noise mute, multi-gear frequency conversion Control mode: start with one key Body material: ABS Rated power: 17W Size: 15 x4. 8 cm Packing list: Fitness equipment*1