Check the listing for details. DEURA Unidirectional Condenser Boundary Microphone DMB-100. Condition: New. Listed at 29.99 USD. Designed for surface-mount applications such as high-quality sound reinforcement,professional recording,television conferencing and other demanding sound pickup situations.DEURA RFI-shielding technology radio frequency interference(RFI).LIST Price $199.99SPECIFICATIONS:ELEMENT: Fixed-charge back plate permanently polarized condenserPOLAR PATTERN: Half-cardioid (cardioid in hemisphere above mounting surface)FREQUENCY RESPONSE: 30-20,000 HzOPEN CIRCUIT SENSITIVITY: -33dB(19.9mV)re 1V at 1PaIMPEDANCE: 200ohmsMAXIMUM INPUTSOUND LEVEL: 130dB SPL,1kHz at 1% T.H.D.DYNAMIC RANGE(typical): 103dB, 1kHz at Max SPLSIGNAL-TO-NOISE RATIO: 67dB,1kHz at 1PaPHANTOM POWER REQUIREMENTS: 9-52V DC,2mA typicalWEIGHT(less cable): 415gDIMENSIONS: 120.0mm-maximum width, 145.0mm-maximum length, 17mm-heightOUTPUT CONNECTOR: TB3M-typeCABLE: 7.6m long, 3.2mm diameter, 2-con-ductor shielded cable with TA3F-type connector and XLRM-type connectors.OPTIONAL INTERCHANGEABLE ELEMENTS: AT853H-ELE hypercardioid(100°) AT853C-ELE cardioid(120°) AT853SC-ELE subcardioid(170°) AT853O-ELE Omnidirectional (360°) Package includes:1 x Black DEURA unidirectional condenser boundary microphone1 x 7M Microphone Cable1 x User's manual