Description:Photon Care Massage Comb:1. Head care, helps hair absorption, vibration massage function (49 massage heads) high-frequency vibration massage scalp, multi-level adjustable.2. Red/blue light therapy can reduce oily hair. Built-in lithium battery provides long-lasting power.SpecificationVibration frequency: 7000 rpm 50HZRated voltage: 5V-1ARated power: 3WBattery capacity: 500 mAhWorking time: about 2 hoursCharging time: about 2 hoursProduct size: 230*42*35mmPrecautionsDue to light and screen differences, the color of the item may be slightly different from the picture.Please allow for slight deviations in measurements and make sure you don't mind before ordering.Package includes1 piece electric massage comb (comes with 1 charging cable)