Short description: This universal hair trimmer has advanced DualCut technology for maximum precision. It features dual blades and is designed to be as sharp as day 1. The Philips Multigroom 7000 all-in-one hair trimmer has 14 attachments that provide a full-body grooming solution. MG7745/15 differs from MG7720/15 in the operating time, where MG7745/15 works up to 180min. but MG7720/15 up to 120 min..