GC910 is the cord-cordlesshair clipper with lithium battery which allows you to work without the electric cord with 60 minutes of autonomy. The first charge before the appliance is used for the first time takes 12 hours. The time needed for the following charges will then be 2 hours. It has an ultra-sharp stainless steel blade for precise cutting. The 4 attachment combs provided let you adjust the cutting length from 3 to 12 mm.GC910 can also be used just adjusting the blade height for cutting lengths of 0.9and 2 mm. Daily cleaning, essential to keep the product workingefficiently, is very easythanks to the tools included in the usage kit.