Wahl Aqua Blade Beard Trimmer is the only blade you need to trim, shave & edge. Achieve a close trimmer shave without the irritation of a traditional razor blade. Long lasting with a lifetime blade warranty. A perfect grooming tool. Uses lithium ion technology for an incredible 180 minutes run time from a 60 minute charge. Comes with 12 guide combs that provide a variety of styling options with cutting lengths from 0.2-25mm.