The Shure MX412DC 300mm Gooseneck microphone offers interchangeable cartridges and enhanced length and flexibility for reliably clear sound reproduction. It features high sensitivity and maximum resistance to electromagnetic hum and RF interference, even over long cables. Features Gooseneck length: 12 inch (30.5 cm)  Interchangeable cartridges provide the right polar pattern for every application Locking flange mount for permanently securing microphone to surfaces Snap-fit foam windscreen Shock mount provides over 20 dB isolation from surface vibration noise Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum Balanced, transformerless output for increased immunity to noise over long cable runs New RF filtering Specifications Weight: 160 g Height x Width x Depth: 330.7 × 11.68 × 11.68 mm Frequency Response: 50 Hz – 17 kHz Frequency Response: Tailored Sensitivity: Cardioid: -35.00, Supercardioid: -34.00, Omnidirectional: –27.5 dBV/Pa – Cardioid: 18.00, Supercardioid: 21.00, mV/Pa Self-Noise: Cardioid: 29.0 dB(A), Supercardioid: 28.0 dB(A), Omnidirectional: 70.5 dB(A) Max. Sound Pressure Level: Cardioid: 124.2 dB, Supercardioid: 122.7 dB, Omnidirectional: 116.7 dB Transducer Type: Condenser Polar Pattern: Cardioid, Omnidirectional, Supercardioid Switchable low cut: No Connectors: 3 Pin XLR Attenuator: Yes Interchangeable Capsule: Yes Main Functionality: Installed Headphone Output: No Requires Phantom Power: 11-52 VDC VDC Cartridge: Interchangeable