Friend Electronic Myanmar

Net Weight (without cable)	81 g (2.9 oz)
Cable	Fixed, Single-Sided, 5-conductor, Unterminated cable (1.8 m)
Microphone
Type	Dynamic (moving coil)
Polar Pattern	Cardioid
Frequency Response	100 to 12,000 Hz
Output Impedance	200 Ohms
Sensitivity (@ 1 kHz, open circuit voltage)	-64.0 dBV/Pa* (0.45 minimum)	*1 Pa -94 dB SPL
Polarity	Positive pressure on diaphragm produces positive voltage on pin 1 (red wire) with respect to pin 3 (shield)
Headphone
Transducer Type	Dynamic, Neodymium magnet
Driver Size	30 mm
Frequency Range	150 to 12,000 Hz
Sensitivity (@ 1 kHz)	101 dB/mW
Impedance (@ 1 kHz)	220 Ohms
Maximum Input Power	200 mW

BRH31M