Record your message, song or joke and the user can play it back with the slightest touch on the large (5¼") activation surface. Total record time is 20 seconds. Device also acts as a switch so you can activate the device of your choice when the message is spoken. The Big Talk also can be activated by an external switch. Comes with a free plastic cover. Size: 7" x 4½". Requires 4 AA Batteries.