The ETS AN1 is a solid state, 20 second, single message recorder and player that can be used with public address, telephone paging, and alarm / access control systems.
This device also has an on board microphone for local recording, or you can use the line input with other audio sources.
Additionally the AN1 also has a 20sec max record time, a message looping option, an 8ohm speaker, and it is all powered through a basic 12VDC power supply.
Applications for this device can include building a wide door bell implementation through a telephone or PA paging system; or you could build an intruder or instruction notification system!