Feature:1. Electric Back Scrubber: The fine bristles is implanted under 350kPa high pressure, closely arranged, skin friendly and comfortable, soft inside and sturdy outside. The three large brush heads operate at the same time, which is equivalent to multiple ordinary bath brushes to help you clean.2. Intelligent Skin Protect: When kneading pressure overload, it will automatically stop the rotation, protecting your skin. The whole body is water resistant, bath security, shower, bath can be so reliable.3. Powerful Motor: High speed rotation supported by strong power, the motor speed will not stop due to strong pressure, and the resistant will decrease the speed and increase the strength, simulate the real person bath, 360 degree rotation, quickly dredge the pores, and efficiently clean the deep dirt.4. Long Lasting Battery: Long life, energy storage for exquisite life. The battery is upgraded to 7800mAh, which can be used once a day for about 5 minutes each time and can be used for 45 days.5. IPX7 Water Resistant Design: Automatic back rubbing machine can be adjusted up and down,easy to operate sliding rail, up and down can be adjusted 64cm, customized scrubbing, to meet various height needs.Specification:Item Type: Automatic Back ScrubberBattery: Built in Battery 7800mAh (with built in battery delivery)Material: ABS, NylonSize: Approx. 428x129x58mm / 16.85×5.08×2.28inRated Voltage: 7.4VRated Power: 33WCharging Time: 4.5hGears: Three GearsWater resistant Level: IPX7.Package List:1 x Back Scrubber3 x Nylon Brush Head3 x Sponge Brush Head1 x USB Charging Cable1 x Adapter2 x Instruction Manual1 x Accessory Pack