Ideal for trimming eyebrows, ear hair, nose hair, beard, or moustache Dual edge blades provide safety while cutting away the hair from the top or side of the trimming foil Hypoallergenic stainless steel blades are durable and safe to use for sensitive skin Suitable for trimming both wet and dry hair Waterproof design with Smart Wash system flushes out hair and debris by running water through the rotating blades 90 minutes of cordless operation is powered by a standard AA battery (not included)