1360degree rotating and pinching, dry and wet, enjoy the stimulation of scalp scratching. 2Powered by environmentally friendly lithium batteries, durable and longlasting. 3Using foodgrade silicone massage head, longterm massage without pain, stretch resistance, oxidation resistance, and high comfort. 4When the massage claw is blocked and does not rotate, it will automatically shut down after 3 seconds to prevent the motor from heating and burning. 5With waterproof function, it can be used when washing hair, which is more practical.