, Optimised for Skype. Supported operating systems - Microsoft Windows 10/8.1/8/7/RT 8.1/RT 8 and Mac OS 10.7 - 10.10 , Wired USB Plug and Play: no software needed, just connect the keyboard to your PC and go , Leatherette ear pads for extra comfort , Flexible six-foot cable allows freedom of movement at your desk , Noise-cancelling microphone when in noisy environments ,