B4-BTN button caps provide custom laser engraving for a Crestron® Designer Series Keypad, model CNX-B4. Each B4-BTN includes a single button cap with or without engraving, and is designed to fit any button position on a CNX-B4. Crestron Engraver software makes it easy to specify and order a complete set of button caps with custom engraving for any model Designer keypad.