IPN USB wired solutions IPN H80 USB Monaural/Binaural headsetDirect USB adapterMute and volume controlMS Lync optimised with with on/ofFlexible micro boomadjuistable headbandReplaceable earplate IPN111 USB adapter Universal QDAutomatic driver installationVolume control (+/-) on adapter and pcMute functionMicrosoft Lync optimisedSkype for BusinessAnswer/Dropcall on IPN111 IPN111: IPN QD to USB cable MS Lync optimised with on/off and QD switches