6 Hours of Battery Life: Internal 48.24Wh LG battery cells, the Sportneer massage gun offers double the battery life of other brand massage gun for 6 hours of continuous useLow Noise: The Sportneer muscle massage gun uses the newest noise reduction technology that it only reaches 35-45 dB, quiet enough so you can use it at home, gym, office, etc.5 Speed Levels to Meet Most of Your Needs: The deep tissue massage gun has 5 speed levels from 1200 to 3200 rpm, from low, medium to high, bringing different intensity massage experience6 Replaceable Massage Heads: The percussion massage gun offers 6 massage heads to help users relax all parts of the body, great for back massage, neck, shoulders, arms, legs, thighs, muscle massageLightweight and Portable: The massage gun for athletes only 1.7lbs with lightweight design with carrying case, simplifying storage and transportation