Built In Microphone
Yes
Microphone Pattern
Omni Directional
Microphone Impedance
2200 Ohm ± 30% at 1KHz
Microphone Sensitivity
-38±2dB
Microphone Noise Cancellation
Yes
Microphone Dimensions
6.0*5.0mm
Speaker Sensitivity
109dB at 1KHz (DC)
Speaker Impedance
32 Ohm±15% at 1KHz (DC)
Speaker Frequency
20-20,000 Hz
Detachable Microphone
Yes