Panasonic ER-GN30-K Men's Nose & Ear Hair Trimmer with improved Dual-Edge Blade and Vortex Cleaning System;. Dual-edge blade cuts hairs which enter the trimmer from not only the sides but also the top. Perfect from trimming individual stray hairs on the eyebrows or for beard detailing. Curved hypo-allergenic stainless steel blades are used that leave the proper amount of hairs for natural filtering. Wet/ Dry operation for use in the shower and easy cleaning. Power Source is (1) "AA" Alkaline Battery (not included) Operating Time up to 90 minutes; Includes Protective Cap; Unit Dimensions 1.3" With x 5.2" H x 1.4" D.