If you\’re looking for a way to help your hair look its best, try the hair growth comb! This incredible device not only massages your scalp, but also uses red and blue light therapy to help stimulate hair growth. With nine different modes, you can customize your treatment to get exactly the results you\’re looking for. Whether you\’re trying to combat hair loss or just want to give your hair a little extra TLC, the hair growth comb is a great choice. Specification:Material: ABS + PEVoltage: DC5VPower: 3WCharging time: 2 hoursPower supply mode: USB chargingBattery capacity: 500mAhContinuous using time: 1-2 hours Package Includes: Massage comb x1; Charging Cable x1; User Manual x1