The Wahl Super Taper Cordless Clipper features a mains/rechargeable function allows you to clip without the restriction of a cord and can be used on the cord if the charge is running low. The convenient thumb lever adjusts the taper and texture without changing the blades. The Lithium Ion battery technology boasts an outstanding 90 minute run time from a 120 minute charge time. Also features an LED light display for when the clipper is charging. With an RPM of 5,500 this clipper delivers a solid cutting performance. For added convenience, existing Super Taper combs are compatible.