Feature:1. Improve the absorption capacity of hair follicles, promote nutrient absorption, activate cells, quickly repair contracted or injured hair roots, thereby promoting hair regeneration.2. Stimulate acupuncture points on the head and accelerate blood circulation, make you feel comfortable.3. It can shrink the fat glands of the head, reduce oil, accelerate growth, and enhance the fixation, density and elasticity of the hair itself, making the hair black and bright.4. With five lamp beads, negative ion, infrared, vibration massage function, three gears adjustment.5. 650nm comb can effectively activate scalp cells, balances their energy and improve metabolism.Specification:Condition: 100% Brand NewItem Type: Hair Growth CombLaser: 650nmCurrent: DC3.7VBattery Type: Lithium Battery 18650Battery Capacity: 450mAhMedicine Liquid Tanks: 12mlVibration Frequency: 6000-8500r/minCharging Time: 2-3 HoursGear: 3 GearsMode: Negative ion, infrared, vibration.Package List:1 x Hair Growth Comb1 x Manual1 x Base1 x USB CableNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.