The Go Talk 4 is a portable 4-message speech generating device that features 4 levels of recording. Each message square can record 20 seconds of speech. It also has an extra message button (yellow button below the handle) that can be recorded with a frequent message or used as a personal ID. This message remains the same on each level. Overlays for each level of recording slide in at the side and are locked in place until the overlay release button is used. The 4-location keyguard is built in. Each square is approximately 3″ x 3″.