HAMACTIV Massage Gun, Upgraded Handheld Vibration Deep Tissue Muscle Massager Device, Powerful Cordless Percussion to Full Body Muscle Massager with 20 Adjustable Speed and 4 Attachments (Black) ( Brand new in box ) ?Healthy life?: HAMACTIV massage gun can help the athlete relieve muscle stiffness and soreness, increase blood pressure, improve the accumulation of muscle soft tissue and relieves muscle stiffness and soreness, enhance and accelerate muscle recovery. Moreover, it can prevent fasciitis and relieve pain, such as bruises, stiff neck, Sore shoulders, back pain and more. ?Super Quiet?: The use of international high-quality brushless low-noise motor and ultra-quiet bearings, which solves the noise problem caused by the mechanical transmission part, even at the maximum speed, only 40-60db. Convenient to massage in bedroom, office, living room or anywhere. Abosolutely not bother other people behind you. ?High performance battery?: large capacity 2400 mAh rechargeable lithium-ion battery can increase battery life due to the ultra-quiet design of the motor and bearings. It works up to 4-6 hours. Air stop function, Every 15-minute stop to remind you the time you have massaged and avoids taking too long a massage in the same area. ?20 Adjustable Speed 4 Attachments?: 20 different speeds is good for you to choose the most comfortable Strength. Four different shaped massage heads to help the user to relax different body parts. The round one, for large muscle group or any part of the body; The fork massage head is designed for the spine; flat one, for plane part of body muscle; bullet one, for joints; The user can change the massage gun’s attachment and speed as needed. ?Lightweight Humanized design?: ergonomically designed, the handle is comfortable and easy to grip with one hand. It weighs only 1kg and with a carrying case