deep tissue massage gun razy Relax Muscle Sport Machine Body Massager Vibration Massage Gun percussion Features: 1. Including 4 different massage head, meeting various demand. 2. Effectively reduce muscle stiffness and sore pain, increasing blood circulation. 3. Multi-speed adjustment, you can choose that you fit. 4. 2000mah large capacity lithium battery, 2-3 hours stand by. 5. Suitable for recovery after sports fatigue, rehabilitation after sports injury, pain relief during the convalescence period of surgery, as well as reducing inflammatory reaction. Specifications: Power Charger --Rated input:100~240V 50/60Hz Battery --Rated Voltage: 8.4V DC --Type: Li-ion --Capacity: 2000mAh --Working Hour: 2-3 Hours --Speed: 1200-3200r/min Package Included: 1 x massage gun 4 x massage heads 1 x Adapter