This microphone kit is great for the touring musician. It comes with 4 d:vote CORE 4099 Extreme SPL mics and a Peli-case for easy transport and protection. More About The d:vote CORE 4099 Mic The d:vote 4099 is a high-quality, instrument microphone and the CORE version adds another layer of sound quality to give it an extra edge. Designed with a supercardioid polar pattern for high rejection and superior gain-before-feedback, this mic retains a uniform off-axis frequency response. The d:vote CORE 4099 works great on any instrument, bringing detail and accurate expression across the entire dynamic range. CORE, by DPA, is a powerful new technology at the heart of DPA miniature microphones. With the CORE version of the d:vote 4099, you'll minimize distortion, from pianissimo to forte, with increased clarity and openness for exceptional recordings.