Feature: Mini size, portable to use.Improve your sleep. USB charging and 6 modes safe. Host diameter of only 5.7cm, thickness of only 1.8cm. Mini-compact can be carried around, travel, travel, home, so that massage becomes easier. : Product name: Electromagnetic Wave Massager Applicable parts: waist, buttocks, legs, back Single product package size: 15 * 7 * 2.3 cm / 5.91 * 2.76 * 0.91 inch Host size: 5.7 * 1.8cm / 2.24 * 0.71 inch Rechargeable model single product with packaging net weight: 65g Massage technique: patting, percussion mode: rechargeable (USB interface) Massage Modes: A uncture massage, scraping massage, kneading massage, massage, a ressure massage, elbow pressure massage Massage intensity: 6 levels, can be adjusted according to their comfort TENS microelectric pulse massage: through the bionic microcurrent pulse mode massage techniques to relieve muscle discomfort. Continuous, gentle stimulation of neuromuscular and cellular, activating muscle fire to achieve a soothing effect.