The Blue Bottle Cap Kit takes the venerable Blue Bottle microphone to even greater sonic heights! This innovative collection of seven interchangable capsules (an eighth - the B6 - is included with the Bottle) adds an amazing array of tonal characteristics and pickup patterns to your Blue Bottle mic, allowing you to capture everything from the wispiest highs to the most gut-punching lows imaginable. The Bottle Cap Kit gives Blue's flagship microphone a level of detail and aural quality reserved for the most vintage and expensive models out there. Get the most out of an already incredible microphone with the Blue Bottle Cap Kit.