A professional digital voice recorder/player that can record up to 4 minutes (UK500M4) or 8 minutes (UK500M8) of high quality speech or any other audio. It incorporates a built-in microphone as well as a line-in audio jack for direct recording from any audio source. Recordings are stored in a non-volatile memory cell and will not be lost if power is disconnected. The circuit also features a Repeat (looping) mode of operation. Easy operation through 3 push-button switches (Record, Play and Loop). Supply voltage: 9VDC / 300mA.