Echo unit combined with small audio mixer, perfect for karaoke Echo can be used on both micro inputs or via effect sends on adapted mixers Adaptable delay range: 0-400ms and 400-800ms 1 master output with level control Mono/stereo switch on master output 2 line inputs with level control 2 microphone inputs with level control 3band equalizer on both microphone inputs Automatic talkover triggered by both microphone inputs