How do I connect a microphone or guitar to the PartyBox 310?

Connect a microphone to the microphone socket and switch the slider to the microphone position, or connect a guitar to the guitar socket and switch the slider to the guitar position. Always set the guitar or microphone volume to the minimum level before connecting or disconnecting, and always disconnect them when not in use. You can adjust the volume, gain, echo, treble, and bass levels using the dedicated knobs on the back panel. (Page 11-12)