The Braun Series 3 310BT Wet & Dry Shaver is a versatile device you can use to shave, edge or trim your beard. The 3 flexible blades adapt to your face contours so you get a smooth and even shave. Or you can trim your beard using the different comb attachments and choose from 1-7 mm in length.For extra comfort, use the Series 3 310BT with gel or foam. It's fully waterproof, so you can take it into the shower or rinse it under the tap when you're done.A single battery charge gives you up to 30 minutes of cordless shaving.