- Noise-canceling microphone filters out the background noise from being picked up- Wideband audio processing guarantees natural sound communication - Stereo sound quality for binaural headset (Crystal SR2732)- Memory steel headband allows you to adjust it tighter or looser for the fit of your head.- Robust design and high quality materials withstand intensive daily use- Over 25 rigorous reliable tests make sure the reliability and durability - Flexible uni-body boom design ensures durability and precise positioning of the microphone - Ultra-lightweight design and soft foam ear cushions for all-day comfort- Plug-and-Play and easy to manage the call with mute, volume+ and volume- - Compatible with Microsoft® Windows 10, Windows 8, Windows 7,Vista®,Windows XP, Windows 2000 and Mac® OS X, etc