Design enables sideburn and neck area to be cut easily and effectively Ergonomic design to comfortably sit in the hand Lithium powered 40 minutes run time Nine fixed combs (1.5, 2, 2.5, 3, 4.5, 6, 9, 12, 15 mm) Quick charge To ensure long lasting performance of your clipper. clean the blades and unit regularly, for even cutting, allow the comb attachmentblade to cut its way through the hair. Do not force it through quickly