Hyperblade Massage Blade Ergonomically designed to fit any part of the body . such as neck, joint, waist, Leg, Arm, hand, shoulder, Back. Micro current + micro vibration, our massager uses micro-vibration and NMES technology to directly work on deep muscle tissue for true deep massage to effectively reduce muscle stiffness and sore pain, increasing blood circulation. 3-Level adjustment, you can choose that you fit, and 1100mah large capacity lithium battery,30 minutes per day, can last for 14 days.Sentence 4. NMES touch switch: NWES will only work if the metal blade touches the skin.Sentence 5. Suitable for recovery after sports fatigue, rehabilitation after sports injury, pain relief during the convalescence period of surgery, as well as reducing inflammatory reaction.