1.Comfier Smart scalp massager has four massage heads with 21 individual nodes each which rotates both in clockwise and anti-clockwise direction giving you a soothing massage to help stimulate hair growth, hair deep Clean and relieves stress & pain.2.The hand-held head massager has 4-mode settings for options. You can select the low speed for a relaxing feel or high speed for a more thorough massage. You can use this scratcher massager for the head, neck, back, etc any part of the body as it is designed to imitate human fingers giving you a relaxing massage.3.The electric hair scalp massager is powered by a rechargeable lithium-ion battery, so no need to plug it in while in use. The massage tool comes with a charging base and a USB charging cable and it lasts for a couple of houses on one full charge. Its compact, cordless portable design allows you to massage anywhere on the go.4.The electric head massager is made from IPX-7 Waterproof material allowing you to use it while taking a shower for a proper scalp massage. The eco-friendly soft silicone heads prevent hair from being pulled or tangled and not hurt your skin. The massage nodes are detachable for easy cleaning.5.This Head Massager is custom-designed,total 28 contactors are perfectly fit the scalp,deep and fully massage head and body.Great ideal gift for men,women,parents and friends.With 1 year warranty.