General Data for Headphone
Open Air Type - NO
Dynamic Type - YES
Capacity (W) - 1
Driver unit (mm) - 30 Driver unit type - Dome
Frequency (Hz) - 14 - 22,000
Sensitivity (dB/mW) - 100
Magnet - Ferrite
Impedance (Ohm) - 24

General Data for Microphone
Type of microphone - Built-in microphone
Electret condenser unit - YES
Bi-directional - YES
Frequency (Hz) - 20 - 20,000
Open circuit voltage level (dB) - -35
Output impedance (kOhm) - 1.0