Material: TPE Charging voltage: DC5V/1A Power supply: USB charging cable Charging time: about 2 hours Working time: about 4 hours The octopus head massager is small and light, with twelve detachable massage claws, easy to install and carry. It can effectively relieve head fatigue, relieve stress, relax body and mind, promote sleep, improve insomnia, daydreaming, brain fatigue, dizziness and hair loss. vibration massage, bringing you different comfort experiences, allowing you to enjoy massage SPA anytime and anywhere. The 84 independent contact points can better massage each acupuncture point, avoiding the problem of pinching hair and causing hair to fall out during use. This octopus massager conforms to the engineering design of the human head curve, fits the scalp, is comfortable to wear, and easy to fix on the head. Top switch design, one-key switch machine and switch mode, easy to operate, even if used by elderly people, there is no obstacle.