specification: Item Type: Mini Muscle Massager_x000D_Material: ABS_x000D_Built In Battery: 1000mAh Lithium Battery _x000D_Advantage: Light weight, small size, telescopic buffering massage Features: 16 Gears: Muscle massager with 6 massaging speed adjustment, you can easily find the most suitable vibration range for you. 2Pain Relieve: Mini massager is suitable for pain relief, stress relief, deep tissue massage, perfect for muscle relaxation after exercise or daily body massage. 3Muscle Relaxation: Use muscle massager after exercise to relieve tense muscle groups, quickly release lactic acid, comb fascia and restore muscle tension. 4Comfortable Grip: Handheld muscle massager adopted shock absorption design, and streamlined design, fit palm size, which is comfortable to hold, prevent numb hands. 5Small And Portable: Muscle massage machine is small in size and light in weight, can be put into your pocket after use without any bag, suitable for home, gym or office use. PackageList: 1 x Mini Massager 1 x USB Cable 1 x Instruction