Logitech Headphone H390 USB

Input Impedance: 32 Ohms

Sensitivity (headphone): 94dBV/Pa +/- 3 dB

Sensitivity (microphone): -17 dBV/Pa +/- 4 dB

Frequency response (Headset): 20 Hz – 20 kHz

Frequency response (Microphone): 100 Hz -10 kHz

Cable length: 7.64 ft (2.33m )

Connections: USB-A compatible (1.1, 2.0, 3.0)