Lync-optimised stereo headset for VoIP softphone, mobile phone and tablet - Premium sound experience ƒ - Active noise -cancellation technology and large around-the-ear cups designed to reduce unwanted noise ƒ - USB adapter with 3.5 mm jack integrated into the control unit allows you to easily connect your headset to your PC, smartphone and tablet ƒ - Busy light signals user availability ƒ - Microphone boom arm can be integrated into the headband when not on a call or simply listening to music ƒ - Microphone mute on boom-arm -ƒ Leatherette ear cushions ƒ - Soft pouch included ƒ - Listen-in feature