Logitech USB Headset H540 - Black - AP



  • Input Impedance: 20 Ohms
  • Sensitivity (headphone): 115dB +/-3dB
  • Sensitivity (microphone): -42dBV/PA +/- 3dB
  • Frequency response (Headset): 20Hz to 20kHz
  • Frequency response (Microphone): 100Hz to 6,500Hz


As simple as plug-and-play - With the plug-and-play USB connection, you'll experience crisp, digital stereo and more true-to-life call almost instantaneously.

Listen to the details - Laser-tuned drivers and a built-in equalizer minimize distortion, so you can get to the heart of all your music, movies and calling. It's the kind of precision audio that exemplifies the difference between merely hearing and truly wanting to listen.

Experience crystal-clear chatting - Breathe new life into your chatting. The adjustable microphone reduces background noises, so your friends, family, and business associates can hear more of what they want--- your crystal clear voice.

Take control of the sound - Use the on-ear controls for simple volume adjusting and instant mic muting. Plus you'll never talk with the mute on again, thanks to the easy-to-see mute indicator light.