Miniature cardioid-type extension microphone. Housing made from impact-resistant and distortion-free plastic, can be bonded to a flat surface. Improved acoustics. Colour black. 
Typical application: as outside microphone for counter intercoms.

MIC Q400AJ version with 3,5 mm audio jack

Sensitivity 15mV/Pa; directional characteristic: cardioid; frequency range: 100Hz-8kHz; cable length 2,8 m (shielded)