feature: 3D three-dimensional massage, relieve fatigue. Simulate the feeling of human hand massage, equipped with 4 heads, 28 claws and 84 contacts, 4 rounds of cyclic rotation, like finger massage, constantly grasping and lifting, pressing the scalp, the massage area is wider, and the massage comfort is better. Two-speed speed adjustment, comfortable and free switching, 160 times/min slow, 200 times/min fast. There are two built-in wrapping directions, clockwise and counterclockwise, which are more conducive to relieving head pressure. The soft rubber contact has both flexibility and elasticity, the force is more uniform, and the contact with the scalp is not irritating. The body has IPX7 waterproof function, while enjoying the head massage, you can also take a shower to clean the scalp. The handle with comfortable grip, the arc size fits the hand-held arc, and the anti-slip is more secure. Type-C is convenient for charging, and the body and the base are charged at the contacts. When cleaning the body, avoid the damage of the USB interface by soaking in water. One massage cycle is 10min, and one full charge can last for about 10 massage cycles. Specification: Size: about 14x11x11cm Net weight: about 405 grams Massage time: about 10 minutes Rated voltage: DC5V 1A Rated power: 5W Charging method: USB Type-C