Features: Stop hair loss and makes hair grow thicker, stronger and healthier Spectacular advance in Home Hair Treatment with Laser Tried and Tested Technology in professional exclusive clinics around the world with great success Brings the same level of Laser Photo Therapy into a Personal Device that is affordable, easy to use and can be used wherever and whenever you choose Combines Laser Photo Therapy that sends nourishing, Low Level Laser Light Energy into your hair with Bio Stimulating Vibration Technology to stimulate circulation Studies show that the combined action of 3 beams of light plus a massage function significantly increases hair strength, improves hair quality and stops hair loss 7 Red 660 Nanometre Energy Diodes stimulate the deepest parts of hair follicles 7 Blue 470 Nanometre Energy Diodes regenerates surface of the hair follicle High precision Laser Beam Window nourishes the root of the hair and helps makes hair follicles thicker With Bio Stimulating Vibration Technology to boost ci Specifications: Size of the laser comb: 24 x 4.5 x 4cm(Approx) weight: 500g approx Power: 4 AAA size batteries (not included)