Feature U-shaped Design Ergonomic design extended handle for easy gripping,the 120-degree radian curved shape perfectly accommodates the physiological curvature of the human spine. This massager deep tissue can effortlessly target your back and other hard-to-reach areas for a relaxing massage. Easy Exercise,Healthy Life Can relax and relieve pains in your back,neck,shoulder,fwaist, tights,foot,legs and arms.For personal use,it is a physical therapy massage tool,which can improve the overall health of the bodys soft tissues. Easy Safe to Use Press the "on/off" button to turn the massager on and off; press the gear key to adjust the speed.Its automatic shut-off timer further ensures this products safety and prevents overheating. The unique long-handle design massage gun is suitable for different ages for different massage needs of various groups. It not only can massage the neck, shoulders, and massager gun for relieving muscles in arms, legs, etc. Specification Item Name :U-shaped Massage Gun charging time: 2-4h rpm: 1800-2200rpm massage head: 4 Product material: ABS Charging voltage: 5V color: Multi mode: 3 modes gear: 6-speed adjustment Rated voltage: 20W Size Chart:24cmx33cm/9.45inch x12.99 inch Rated current: 24 Input parameter: 5V-2A Rated voltage: 7.4V Battery capacity: 2000mAH Rated power: 17W Package Includes 1 x U-shaped Massage Gun 4 x Massage Head 1 x Charging Cable