Scalp Massager CombHairbrushAnti Hair Loss Head Care Electric Massage Comb Brush with USB Rechargeable for Women/Men

3-IN-1 Massage Comb: Easy to use Scalp Massager Comb? 1 Step?Press the switch about 3 seconds to turn it on. This machine begin vibrate. 2 Step?Light press the switch and the blue keep working. 3Step?Light press the switch again and the red keep working. 4Step?After using, press the switch about 3 seconds to turn it off. Best Gift? TO Parents?On Mother's Day and Father's Day. TO Sister?At the birthday of my sister. TO Boss?Improve relationships with boss. TO Friends?At the party. Specification: Item Type: Scalp Massager Comb Function: Vibration Massage Body Area: Head Use Frequency: 2-4 times/day Service Time: 5-10min for each time Power Supply: Built-in battery, USB rechargeable