H540 USB Computer Headset features plug-and-play connectivity so you can instantly enjoy music, movies, and calls in rich, digital stereo sound. On-ear controls and mute indicator light make it easy to see when the mic is muted.   Premium Audio For Calls And Music Laser-tuned drivers and built-in equalizer for precision audio. USB-A plug-and-play connectivity lets you instantly enjoy music, movies, and calls in rich, digital stereo sound. On-ear controls and mute indicator light make it easy to see when the mic is muted.     High-Definition Sound Quality Laser-tuned drivers and built-in equalizer provide rich, digital audio for full immersion in music, games and calls. This plug-and-play headset can be used with any PC or Mac computer with a USB-A port or adapter without the need to install software.   Noise Canceling Mic Minimizes unwanted background noise for clear conversations. Right-sided mic can be conveniently positioned for better voice capture. Discreet boom can be tucked inside the headband and out of the way when you’re not using it.