Large, easy to press 2” x 2” square play button allows access for a wide variety of student abilities Built-in clear pocket securely holds standard 2” x 2” square symbol 10 seconds of recording time Re-recordable, with built-in record light Crisp, clear sound quality Mounts using Velcro :registered: strip or internal magnet (both included). (Note: adhesive on Velcro :registered: strip may damage wall surface)