Sennheiser MD 421-U

Frequency Response: 30 - 17000Hz
Acoustical mode of operation: pressure gradient transducer
Directional characteristic: cardioid
Rejection at 180˚ and 1kHz: 18dB - 2dB
Open circuit output level at 1kHz ref 1V/10μbar: -54dB ±3dB
Electrical impedance at 1kHz: 200Ω
Minimum load: 200Ω
Bass attenuator switch: 5 steps
Output plug: XLR-3
Cable connector: 3 pin Cannon connctor XLR-3-11 C
Connections: 2 and 3 signal, 1+ case: ground
Insentivity to magnetic fields at 50Hz: <50μV/5μ Tesla
Dimensions in mm: 215x46x49
Weight: appx. 370g