In-line function keys for volume and mute microphone - Only for quick disconnect USB and RJ11 adapter cable. Delivers clear conversations with ambient noise cancelling microphone. Designed for professional use: office, call centers and online meetings. Wide compatibility with Quick Disconnect connectivity: If you want to connect it with 3.5mm jack or RJ11, there are 3 Quick Disconnect adapter cables available. The headset contains in the package, Quick Disconnect to USB adapter cable, so you can use USB Plug and Play without any other cable needed. The box also contains a travel case.
