Ø Support 8~320Kbps MP3 audio format, good sound quality.
Ø Voice changing is convenient, available to use U disk to copy audio file to the internal FLASH.
Ø Support built-in maximum 128M SPI Flash as a carrier of voice storage.
Ø With the function of direction recognition, switching modes freely between no direction recognition and direction recognition.
Ø Voltage: DC12V.
Ø The off-delay time of relay can be set through config.txt file(0s~99s).