RUISIBAITATA Massage Gun - Muscle Massage Gun Deep Tissue, Percussion Massage Gun for Neck Back Leg Massager, Electric Portable Quite Massager for Pain Relief, Gray. Equipped with a 3300mAh high-quality lithium-ion battery, lasts from 8-15 hours massage use on a single charge. Muscle Massage Gun: 12 massage heads & 7 speed levels & 1300 to 3,200 rpm, provide targeted treatment for every muscle group. Quiet Massage Gun: Use noise reduction technology, high power, low noise.Work noise less than 40 dB, let you have a nice relaxing experience in the office, gym, and travel. Handheld Percussion Massage Gun: Lightweight design, easier to hold in hand, can effectively helps relieve muscle soreness, relieve lactic acid. Deep Tissue Massage Gun: With a portable handbag case, easy to carry out. The instruction manual is attached.