1. TPE 3D massage arm: There are 12 3D massage arms made of TPE material, with good elasticity and high flexibility;
2. USB port charging: USB charging port, no need to install batteries, with 4 red LED lights;
3. 1 key switch, 3 gear selection: 1 switch, simple operation, control switch and gear position, 3 gear selection can experience differently;
4. Various ways of use: fit the curve of the head.
