Microphone is designed for harmonica, it also serves as a great vocal microphone. Its cardioid pattern dynamic cartridge has been expressly tailored for producing thick, fat tone while holding cupped with enough filthy tone to satisfy even the most discriminating blues harp players. And open air, uncupped use produces extremely smooth, clean vocal audio. It allows singing harp players the convenience of singing and playing through the same mic with great sound throughout. This mic is also a top performer for either application alone, and can be used with its own amp or plugged into the PA.