SHURE BRH31M

Weight , without cable:
- Net: 81 g (2.9 oz.)
- Packaged: 0.4 kg (0.9 lbs)
Weight, with connector:
- Net: 125 g (4.4 oz.)
- Packaged: 0.45 kg (0.99 lbs)
Cable: 1.8 m, non-PVC, unterminated
Environmental Conditions:
- Operating Temperature: 18° to 60° C (0° to 140° F)
- Storage Temperature: -29° to 74° C (-20° to 165° F)
- Relative Humidity: 0 to 95%

Microphone
Type: Dynamic, Neodymium magnet, 12.5 mm
Polar Pattern: Cardioid
Frequency Response: 50 to 15,000 Hz
Output Impedance: 150 Ω
Sensitivity (at 1 kHz, open circuit voltage): -66.5 dBV/Pa* (0.47 mV)
Polarity: Positive pressure on diaphragm produces positive voltage on red wire with respect to black wire.

Headphone
Transducer Type: Dynamic, Neodymium magnet
Driver Size: 30 mm
Frequency Response: 150 to 12,000 Hz
Sensitivity (@ 1 kHz): 101 dB SPL/mW
Impedance (@ 1 kHz): 220 Ω
Maximum Input Power: 200 mW