Invention
I use the lasercomb for 20 minutes every day after washing with Nizoral, no harmful effects, growth at the front is improving from a shiny desert.
I don't know what I will do without the beep if I have to buy the new model. Maybe make my own beep machine?
Joking aside it is hard work and tiring on your arm, and I suggest using a microphone or other kind of flexible stand to hold the comb above your scalp, then move your head around. I give this invention freely to the whole world! Probably many others "invented" it already.
Boru