Logitech H600 Wireless Headset (981-000504)
-Input Impedance: 30 Ohms
-Sensitivity (headphone): 102dB +/-3dB
-Sensitivity (microphone): -44dBV/Pa +/- 3dB
-Frequency response (Headset): 40Hz - 10KHz
-Frequency response (Microphone): 100Hz - 6.5kHz
-USB-A charging cable length: 1.22m
-Warranty: 2-Years