The Wahl Mini Groomsman is a 3-in-1 ear, nose and brow personal trimmer with three interchangeable cutting heads: a reciprocating head for ears and touch-ups, a rotary head for nose hairs and a detail head for necklines, eyebrows and sideburns. These detachable blades can be run under water for easy and hygienic clean-up.The kit includes a single AA battery and an eyebrow guide attachment to make home grooming quick and easy.