The Plantronics MX10 brings telephone & computer integration closer together. The MX10 amplifier integrates your telephone & your PC, providing sophisticated & independent control of 2 separate audio channels. The audio switching capability lets you swap between a telephone call & PC audio input & for specialist applications, the volume of each channel can be individually controlled. Indeed, the MX10 can even be used for voice recording. Standard headset functionality is provided, including mute & headset/handset selection. You can use all the Plantronics professional H-series headsets with the MX10 & it is compatible with the majority of business telephones, although this variant of the MX10 is designed solely for use on Syntegra equipment.