Optimised Headphones : For Microsoft Lync, Cisco compatible and Skype certified, the USB Headset H570e ensures an integrated experience with most business-grade UC platforms Adjustable : The durable and adjustable padded headband can be worn comfortably all day, the metal reinforcement providing strength, flexibility and just the right fit Comfort : Built with high-quality materials, the leatherette ear pads ensure the headphones remain comfortable during long hours of use. The ear pads can also be easily cleaned and are conveniently replaceable Inline Controls : Provide convenient access to volume, microphone mute and call answer/end. With Microsoft Lync and Cisco deployments. Works with Skype using plug-in Call Indicator : A LED flashes with incoming calls, giving a convenient visual cue to answer the phone. With Microsoft Lync, Jabber 9.6 and later deployments; Jabber 9.2 and Skype require plug-in