Philips T980 Beard Trimmer
I've tried several beard trimmers over the years but the Philips Norelco T980 Turbo Vacuum Trimmer is the best one by far for providing an even beard and mustache trim while doing a good job in turbo mode of vacuuming up the beard clippings.  I highly recommend it and have purchased two of them; one for my main home and one for a vacation home.
Rating: 5 stars