Students who have visual disabilities or require a larger activation surface, will have no problem operating the BIGmack communicator’s large, 5-inch activation surface to communicate with teachers, classmates and the world around you. It’s easy to record a single message with up to 2 minutes of playback. Playback your message and activate a toy or appliance at the same time! This communicator includes a Snap Switch Cap and easily interchangeable switch tops in red, yellow, green, and blue.