These three Lampifier microphones are programmed for a live concert. The ProConcert Vocal microphone is for a lead vocalist. The Concert Amplifier microphone is for a guitar amplifier or keyboard amplifier, and the Gated Snare Drum microphone is for thedrummer. Since Lampifier microphones can be reprogrammed for different applications, this convenient pack let's you try a variety of programs and reprogram the microphones as needed.