Features: Including 4 different massage head, meeting various demand. Effectively reduce muscle stiffness and sore pain, increasing blood circulation. 3-speed adjustment, you can choose that you fit. 10 minutes intelligent timing guarantees long life of the machine. 1500mha large capacity lithium battery, 2 hours stand by. With over-protection, overheat protection and other safety protection devices, safe to use. 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 1A Rated Voltage: 24V DC Type: Li-ion Capacity: 1500mAh Working Hour: 2 Hours No-load Speed: 3000r/min Weight: 1.5kg Dimension: 25 x 23cm 3 Levels Adjustment: Level 1 - 1800/min, Level 2 - 2400/min, Level 3 - 3200r/min Package Included: 1 x Massage Gun 4 x Massage Tips 1 x Power Charger