PUI Audio API Audio Programmable Indicator (API-4260-LW150-2-R) allows easy audio file transfer to any computer (Windows, Linux, or Mac). Programming the API device is as easy as adding .MP3 and .WAV files to any computer that supports USB thumb drives. A simple drag-and-drop motion transfers the files. A large 4MB storage size allows longer files (WAV or MP3) usage and/or sequential playback of multiple files, while an internal DAC allows for 48kHz sampling rates for true frequency response out of 20kHz. Mounting flanges and 150mm lead wires allow for easy product integration with activation only requiring a 7VDC to 24VDC supply. The API can be used in most ambient conditions as the component provides a 100dB output at 10cm (with a 1kHz file recorded at 0dB).