The Wahl Lithium Ion trimmer has everything you need to shave and trim your head, body, and face. You can trim your beard and hair with the comb attachments, the length settings of which range from 3 to 12 millimeters. You can create a 3-day stubble with a length of 0.3 millimeters without the comb attachment. Once your beard hair has the desired length, you can touch up the edges with the small precision trimmer. The set also comes with a separate comb attachment for your body, so you can use the Wahl Litium Ion as a body groomer. If you don't want to trim, but you do want to shave, simply use the shaver head for a nice, smooth result.