Revolutionary cutter powers through hair, no matter the length Smooth anti-friction blade helps to reduce razor burn, even when shaving without foam or water Dual-sided blade lets you achieve precision results quicker with clean lines and edges Cordless design makes it easy to maneuver Built-in lithium-ion battery lasts for up to 30 minutes on one charge and fully recharges in eight hours Waterproof construction enables wet and dry use Fits replacement blades QP225/50, sold separately