Wahl Beretto Pro Lithium Clipper is highly efficient and durable, it has been created for the busy stylist or barber. Designed with revolutionary lithium ion technology, The Beretto has a 2x longer life span than your average clipper. When fully charged, this clipper boasts up to 90 minutes continuous cordless cutting from a 180 minute charge time. The Beretto also has a convenient 10 minute quick charge function. No memory loss means this clipper won't lose power in storage.