The FXONE BLACKFX Hair Trimmer features a new N1 brushless motor with dual ball bearings for greater efficiency. Enjoy the trimmer's ease of use with an interchangeable lithium battery pack, which offers a quick release button and up to 3 hours of run time. The trimmer comes standard with the Black Graphite Deep-tooth T-Blade, featuring hypoallergenic materials and runs at a low blade temperature. Use this professional lithium ion hair trimmer for crispy edge ups, hard lines and all other detail work.