Logitech H151 Stereo Noise Cancelling Wired Headphones

Logitech H151 Stereo Noise cancelling wired headphones Microphone: Bi-directional, noise-cancelling Frequency Response: Headset: 20 Hz – 20 kHz Microphone: 100 Hz – 6.50 kHz Sensitivity: Headphone: 122 dB +/-3 dB Microphone: -44 dBV/Pa +/- 2.5 dB Input Impedance: 22 Ohms Connection: Standard 3.5mm audio jack Cable Length: 1.8 m (5.9 ft)