HEADPHONE
Driver: 1.6 in (40 mm)
Frequency response: 20Hz-20KHz
Impedance: 32 Ohms
Sensitivity: 90dB SPL/mW
MICROPHONE
Microphone Pickup Pattern: Cardioid (Unidirectional)
Type: Pressure Gradient Electret Condenser
Frequency response: 50-20KHz
Sensitivity: -40dBV/Pa re: 0dB = 1 Pa, 1KHz
Test conditions: 3.0V, 2.2K Ohm