Key Features:- Certified for Microsoft Teams /Skype for Business- USB-A jack + detachable 3.5mm Jack for smart phone or laptops- Mono ear coupling on Ear- Leatherette ear cushions- Cable length - 7.5ft (226cm)- Digital Signal Processing (DSP)- Noise canceling mic- In-line controls for volume and mute and answer- ActiveGard to stop noise spikes in the line