Sennheiser MKH30 Figure 8 Microphone, from Sennheiser

Current Consumption: ........ 2 mA
Pick Up Pattern: ........ Figure 8
Frequency Response: ........ 40 - 20,000 Hz (-3 dB)
Sensitivity: ........ 25mV/Pa (8mV/Pa +-1dB)
Nominal Impedance: ........ 150 ohm
Min Terminating Impedance: ......... 1000 ohm
Equivalent Noise Level: ........ 13 dB (18 dB) / 22 dB (27 dB)
Max Spl: ........ 134 dB (142 dB)
Dimensions: ........ 25mm x 174 mm
Weight: ....... 110 g
Transducer Principle: ........ Pressure gradient microphone
Max Output Voltage: ........ 2.5V

MKH condenser microphone with Figure-8 pickup pattern

Features
-Microphone with figure 8 pick-up pattern
-Highly symmetrical and frequency-independent pick-up pattern
-High rejection of lateral sounds
-Wide, flat frequency response
-Exceptionally low inherent self-noise
-Switchable roll-off filter to compensate for proximity effects at a distance of approx. 0.5 m
-Switchable pre-attenuation