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