Use an electric shaver with a trimmer to trim your sideburns and neck hairs or let your beard grow. Want sideburns with clean lines? Choose an electric shaver with a precision trimmer. If you prefer your beard to stay untrimmed, a shaver with a trimming attachment is more suitable. We also recommend a trimming attachment for heavy beard growth. This allows you to trim your beard before shaving it. If you have a thick beard, it's a good idea to use the trimming attachment to shorten the hairs before shaving.