The microphone shall be an omnidirectional condenser clip-on microphone with a dual-diaphragm transducer element for maximum cable and handling noise rejection.
The front grill shall be detachable for cleaning and the transducer element replaceable. The frequency range of the microphone shall be 20 Hz to 20 kHz; its sensitivity at 1 kHz 8 mV/Pa; max. SPL for 1% THD 133 dB; and its A weighted signal/noise ratio >68 dB. An adapter for use in place of the standard front grill shall provide a high-frequency boost of approx. 6 dB at 12 kHz.
The microphone shall measure 5.5 mm in diameter by 14 mm long; the cable shall be 1.5 m long. The microphone shall have a female 3-pin mini XLR connector, use a-b powering from the bodypack transmitter, have a matte black finish, and weigh 0.4 grams (exc. of cable).
The microphone shall include a windscreen, tie pin, universal clip, and BP-77 adapter as standard accessories. The microphone shall be the CK 77 WR L from AKG.