The Neumann MC 3 Double Bass Mount is intended for mounting the SH 150 Gooseneck to a Double Bass. This clips onto the instruments strings securely allowing you to configure your microphone in the optimal position. The MC 3 is intended for use with the SH 150 Gooseneck and KK 14 microphone capsule. Features For mounting a mic to a Double Basss strings Compatible with Neumann MCM microphone system components Keeps the gooseneck microphone in place securely while being easy to adjust Specifications Compatible With: Neumann SH 150 Gooseneck Neumann KK 14 Condenser Microphone Capsule