The HAEGER PRECISION II trimmer is battery operated and can be used with wet or dry hair. Its blade is made of stainless steel which is removable for better cleaning and has adjustable combs of 4-16mm and 18-30mm. It comes with a comb, lubricating oil and cleaning brush as accessories.For wet or dry hairErgonomic and practicalRechargeable and water resistant batteryDetachable stainless steel bladeCut length controlCharging indicator light