1Noise reduction technology, noise as low as 55dB, 24V brushless motor equipped with double bearing transmission, strong power and low noise. 2Rotating massage reaches the pain point, three angles can be selected, can adjust the angle according to your own needs. 3Onebutton intelligent touch control, simple and convenient operation, slim body, comfortable to hold. 42600mAh Built in lithium battery, special designed for back, shoulder, arms, hips and calf massage. 5There are 4 gears RPM available, you can choose according to your demands, convenient operation and high strength.