Super Quiet: Comfier compact muscle massage gun adopts brushless motor with the latest noise reduction technology, and the noise is less than 44dB during use. Despite its small size, the massage intensity is not diminished and the noise is almost non-existent. Long Battery Life & Rechargeable:This portable mini massager is powered by a built-in 2000mAh rechargeable lithium battery, which can be charged via USB.The massage gun can run continuously for up to 7 hours after being fully charged. Deep Tissue massager Gun: 4 speeds provide relaxation for muscles (1800, 2300, 2900, 3600). Each speed brings greater therapeutic benefit to the body. Each massage head can target your muscle groups to deeply relieve pain and quickly relieve muscle stiffness and soreness after exercise. Powerful Brushless Motor: Comfier massage gun mini uses a powerful motor. Maximum speed can reach 3600rpm, and the vibration amplitude is 6.5mm. The power of this mini gun allows you to better release and relax tight muscles, deeply massage and relieve hard-to-reach muscle groups. Portable Mini Massage Gun: The Comfier muscle massage gun weighs only 0.5kg. Portable and lightweight, this small massage gun is the same size as your phone, easy to put in your pocket or use it at home, in the office, in the gym, or outdoors.