Gator GBELLCVR2223BK 22 23" Bell Cover w MERV 13 Filter Inches Black MEX25 CHAUVET This compact barrel mic has Frequency:560 608 MHz This compact barrel mic has a super cardioid lobal polar pattern for capturing only your intended sound source The system is so comprehensive for its size that it boasts all the essential features such as bass equalization filter knobs for smooth transitions or touch sensitive jog wheels for easy scratching The wind instrument double layer bell cover for 22 to 23 inch bell sizes fits securely over the bell opening of your instrument to help reduce the spread of aerosols during use Exterior Height: 0