Product 1.Massage Comb For Men Women This 3-in-1 comb with 28 soft silicone massage contacts promotes blood circulation, helps wake up the scalp and relieves you of a days fatigue.Idea gift to partner, ideal gift to parents, idea gift to friends. 2.Vibration Massage Massage your scalp with a vibration frequency of 6000rmp, relax muscle and relieve fatigue, stimulate cell activity and promotes the absorption of the nutrition. Frequently use can prevent from headache or intermittent headache. 3.Blue Light Phototherapy Stimulate hair follicle and control oil, anti-inflammatory effect, relax and calm the scalp skin, promote hair health, improve hair quality. 4.Red Light Phototherapy Enhance your blood circulation, so that the oxygen and nutrients can be sent to hair follicle, promote collagen growth and anti hair loss. 5.Portable To Carry The phototherapy scalp massager comb with built-in battery is USB rechargeable; Compact size and lightweight allows you to carry it around to use anytime anywhere.