1Mellow cutter head, fit scalp and quickly cut hair without hurting skin. 23 limit combs are available, easily control the length of cutting, help beginners get better haircuts. 3Fixed knife and moving knife tip fit, super short tooth space, can effectively trim hair. 4Conform to ergonomic design, the handle is easy to grip, convenient for operation. 5When the electric quantity is low, directly connect to the power and use USB to charge, 3 hours fast charging, no need to wait for a long time.