Compro-60USA; 60W 100-240VAC Power supply Compro-80USA; 80W 100-240VAC Power supply Amplification for premium sound from a reliable, high quality Class-D amplifier provides optimized performance and premium sound quality With Record function, can record in the USB drive and play Microphone priority function to mute the BGM in paging status Individual music and microphone paging volume controls. Bass, treble, and echo controls With built-in Mp3 supports many audio format like Mp3,WMA, WAV, APE, FLAC etc. 4 Ohm and 100V line outputs optional Emergency 12-24VDC battery back up function, or use in car for vehicle amplifier
