Dual-edge blade cuts hairs from a variety of angles to neatly trim nose, ear, eyebrow, beard, and mustache hair Hypo-allergenic stainless steel blades allow the proper amount of nose hairs to remain, serving as a filter for your nose Panasonic Vortex Cleaning system draws in water and spins it through the trimmer to get it clean in just seconds Requires one AA battery (sold separately) for 90 minutes of operation Includes a protective cap and cleaning brush