Intelligent 9-Speed Adjustable Cupping Massager, USB Charging, Full Body Heat Therapy Cupping Tool, With 8 Steel Balls, Suitable For Home Use, Long-Lasting Battery

Power supply: USB charging Working voltage: 36V and below Battery properties: rechargeable battery Rechargeable battery: lithium battery--18650 series Battery capacity (mAh): 1200 Applicable parts: waist, back, whole body