Upgrade 3 in 1 laser hair comb is a scalp and hair care instrument. Working together with Laser,Microcurrent,Red LED light.make the biological energy became balance, improve the metabolism.Laser treatment, to go straight to the root hair follicles: by laser physical therapy, to increase scalp cell activity, deep into the pores, stimulate the hair follicles activity, promote blood circulation, make the hair growed well.Microcurrent, stronger vitality to the hair:microcurrent stimulates scalp via ions, unchoke the clogged pores, activate the hair follicle, so to supply nutrition to hair and strengthen hair root.Portable, lightweight, safe and healthy Handheld cordless comb,Suitable for men and women with thinning hair, can let them fast,simple,easy hair growth,gives confidence to women & men alike by restoring their hair to its natural, fuller glory.Product name:RF & Laser Hair Regrowth CombMaterial:PlasticSize:185*45*55MMweight150gTherapy:RF+EMS+LASER+VIBRATION +PHOTONPhoton wavelength:650nm, 8pcs leds3pcs lasers14 human bodies acupoint massage headGear position: 3 Gear positionCharging style:USB cable for chargingPower:AC-100-240V, 50-60HZ 3WPower of laser:1mW-5mWIncludes: Hair regrowth Comb, USB data cable, English manual