Mini Portable Electric Fascia Guns with 4 Heads USB Rechargeable Back Neck Deep Tissue Muscle Massager Body Relaxing Pain Relief Fitness Equipment Health CareFeature: 1. Carefully configured four massage head, taking care of every corner of your body.2. One button control multi-grade speed control, 6-speed frequency vibration, 2-3 hours of life, equipped with rechargeable lithium batteries for you.3. Rechargeable lithium battery, after charging can be used for about 2-3 hours.Specification: Rated voltage: 12VAdapter 8.4V Rated frequency: 50HzRated power: 24WSize: 23*22.2*6.5cm/9.06*8.74*2.56inMaterial: ABS + metalColor: Black, Green, RedNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. 1 X Fascial Gun4 X Massage Heads1 X USB Data Cable