Rated power 500W 70V/100V & 4-16Ω speaker output Audio input: 3 Mic, 2 AUX, 2 EMC Support USB/FM/Bluetooth function With 1 AUX output for power extension With 1 Pre-out interface for audio processor With rack mount handles for standard 19” rack Mic 2-3 with phantom power 48V and independent gain adjustment Individual volume control for Mic and Aux input With Bass/Treble/Master volume control Support EMC input/Siren/Mute Priority: MUTE>EMC=Alarm=Chime>MIC1>Others Support IR remote controller Power supply: AC110V-240V/50Hz-60Hz or DC24V