Sennheiser MKH70 Interference tube Microphone, from Sennheiser

Current Consumption: ........ 2 mA
Pick Up Pattern: ........ Lobar
Frequency Response: ........ 60 - 20,000 Hz (-3 dB)
Sensitivity: ........ 50mV/Pa (15mV/Pa)
Nominal Impedance: ........ 150 ohm
Min Terminating Impedance: ........ 1000 ohm
Equivalent Noise Level: ........ 8 dB (18 dB) / 20 dB (27 dB)
Max Spl: ........ 125 dB (123 dB)
Dimensions: ........ 25mm x 410 mm
Weight: ........ 190 g
Transducer Principle: ........ Interference tube microphone
Bass Attenuation: ........ 5 dB at 100 Hz, switchable
Treble Emphasis: ........ 5 dB at 10 kHz, switchable
Pre Attenuation: ........ 10 dB, switchable

Interference tube (long gun) microphone with lobar pick-up pattern

Features
-Interference tube (long gun) microphone with lobar pick-up pattern
-High directivity throughout the whole frequency range
-Very lightweight
-Exceptionally low inherent self-noise
-High sensitivity
-Switchable treble emphasis
-Switchable roll-off filter
-Infrasonic cut-off filter (-18 dB/oct.)
-Switchable pre-attenuation