There are a lot of different types of hair clippers but also there are few trimmer-kits, our amazing super star wizkid(starboi) the best set of clipper to cut his hair and gives him a wonderful look.
One has to take precaution in using a clipper, you must read instructions to know how to go about it
Check out the different set of hair clippers and you should be able to know the desired one to use to avoid scars and to know the kind of barbing shops to vist.

CHECK OUT: http://www.beardtrimmerkits.com/category/clippers/electric-clippers/