Description : Advanced 7 LaserComb The only FDA-cleared laser hair-growth photo-therapy devices clinically proven to treat hair loss and promote hair growth in both men and women. Lower on price but high on style and function, the HAIRMAX LaserComb Advanced 7 features seven laser modules for a recommended treatment time of 15 minutes and four AA batteries for cordless operation. To assist with each treatment, the HAIRMAX LaserComb Advanced 7 contains a built-in vibrate function. Brand: MaxHair LaserComb. Style Name: HAIRMAX 'LaserComb Advanced 7' Hair Growth Device. Style Number: 680267.