◆Battery Power Support: 3 x AAA
◆One switch button, 2 intensity levels with High/Low.
◆Built-in powerful motors 
◆Can be used for hands, arms, abdomen, waist and legs. With strong heating function, can warm up the body like joints and  muscle tension, aches or pains
◆EVA material, waterproof, anti-corrosion, high rebound.