Product Highlight : -High-Definition Sound Quality : These headphones’ laser-tuned drivers and a built-in equaliser provide rich, digital audio for full immersion in music, games and calls -Noise-Cancelling Mic : Minimizes unwanted background noise for clear conversations. The right-sided mic can be conveniently positioned for better voice capture. The discreet boom can be tucked inside the headband and out of the way when you’re not using it -On-Ear Controls : Adjust the headphone volume or mute your calls with simple on-ear controls located on the right ear cup. The easy-to-see light indicator on the headset cord confirms mute status -Padded Comfort : The headphone H540 features an ultra-comfortable and adjustable design. Soft, padded leatherette headband and ear cups feel good even after hours of listening -USB Connection : This plug-and-play headset can be used with any PC or Mac computer without any software. Simply plug the USB connector into your computer and instantly enjoy conversations, movies or music in rich stereo sound Product Description : The H540 USB Computer Headset features laser-tuned drivers and a built-in equalizer for precision audio. The right-sided mic minimizes unwanted background noise for clear conversations. It can be conveniently positioned for better voice capture and tucked inside the headband when you're not using it. USB plug-and-play connectivity lets you instantly enjoy music, movies and calls in rich, digital stereo sound. Adjust the volume or mute your calls with on-ear controls – an indicator light on the cord confirms mute status. The ultra-comfortable and adjustable design features soft, padded leatherette headband and ear cups, so that it feels good even after hours of wearing. System Requirement : Works with common calling applications across almost all platforms and operating systems Package Content: Headset, User documentation