A4Tech, ComfortFit Stereo Headset Headphone - HS-19

Omni-Directional High Performance Stereo Sound Superior Ear Cushions Adjustable Headband Superior Sound Quality Stunning clarity and a bass impact you can feel. Omnidirectional Noise-cancelling Mic. An omnidirectional noise-canceling microphone makes the call clear and natural. Superior Ear Cushions For hours of comfortable listening. Adjustable Headband Lightweight and adjustable headband for optimum fit and long-term comfort. SPECIFICATIONS Style: On-the-Head Speaker: 40 mm Frequency range: 20 Hz-20 KHz Impedance: 32 Ohm RMS: 50 mW Sensitivity: 102 dB MIC sensitivity: - 50 dB Cable length: 2 m Plug: 3.5 mm Controller: Volume knob on the headset