[Massager Advantages] This massager adopts the most advanced same-frequency massage system. The four claws massage towards the center at the same frequency, completely imitating the manual massage technique, allowing you to enjoy every moment of relaxation. The red light can nourish the scalp, improve the scalp environment, promote scalp blood circulation, relieve scalp pain, promote scalp metabolism, and improve hair loss.[Full body massage] This massager can not only relieve the discomfort of the scalp head, but also can be used for other parts of the body, such as the neck, arms, legs, back, etc. The product has a total of four massage heads, each massage claw has 19 massage contact points, the density of these contact points is determined after many experiments, which can better allow the product to release the strength evenly and relieve the pressure of the human body.[How to use] The indicator light is on, and the blue light is on to indicate that the product starts working. There are two levels of strength that can be adjusted. The default is level one when it is turned on. Press the power button once to enter the second level and cycle in sequence. Tips: Remember not to turn on the device while charging.[Wet and dry use] The waterproof level of this product is IP6-7. It can even work in water, so it can be used when washing your hair or taking a bath without any safety issues, and it is also easy to clean after each use. All four claws are detachable for easy cleaning, and the environmentally friendly soft silicone head prevents hair pulling and tangling, and will not hurt your skin.[Wide Applicability] This massager not only provides people with wholehearted enjoyment and relaxation, but also allows pets to bathe or massage, making it a great choice for gifts between friends.