The Chipper is a single message, direct selection communicator designed for use by individuals with communication disabilities. The Chipper can record messages up to 40 seconds long. It plays the recorded message when the button on the top of the unit is pressed or when a connected external switch is activated. The message is plays through the Chipper's speaker or through a connected external speaker. The unit has external switch and speaker jack jacks and adjustable volume, with relay/switch output capabilities for cause effect skill building. POWER: Uses a 9-volt battery (included). COLORS: Black base with red, yellow, green, blue, or purple top surface. DIMENSIONS (HxLxW): 2.25 x 3.5 x 3.5 inches.