About this item-Equipped with a built-in 1000mAh high-quality lithium battery, a single full charge can meet your needs for several days. It uses a standard USB charging port, compatible with various power sources such as computers, power banks, and wall sockets.-Featuring a detachable design, the comb plate can be easily removed for thorough cleaning of dandruff, broken hair, and oil residue accumulated at the base of the comb teeth, ensuring hygiene and cleanliness with every use.-With a built-in professional vibration motor, high-frequency vibrations are transmitted to each comb tooth, stimulating acupoints on the head. Daily use can effectively relieve scalp tightness and fatigue, promote blood circulation in the head, and help relax the mind and body.-T.