If you use the Philips Series 7000 BT7500/15, it will catch most of your shaved beard hair. This beard trimmer has a vacuum system, so you just need to empty it above the trash can every now and then. You can trim your beard in 20 different lengths, ranging from 0.5 to 10 millimeters. Your favorite beard length is bound to be among them. With a 75-minute battery life, you don't need to charge it that often, which is useful when you want to take your beard trimmer with you on holiday. If the battery does drain and you don't have time to recharge it, you can just plug it into the socket to use it anyway.