Primo EM264 capsule specification:
- Characteristic : Uni-directional (cardioid)
- Sensitivity: 37 dB ± 3 dB at 1 kHz (0 dB = 1 V/Pa , VCC = 3 V, RL = 2 k Ω)
- Impedance: 1.4 kΩ ±30% at 1kHz
S/N Ratio: 74 dB at 1 kHz
- Operating Voltage: 3 V
- Current Consumption: 600 μA Max
- Max Input Sound Pressure Level: 120 dB S.P.L.