With some phones, you have to raise the handset to use the headset. With others, you can leave the handset on the phone base while you use the headset. Some adapters provide wireless communications, so you can roam while on the phone. Plantronics Vista M12 Vista Universal Amplifiers adapt almost all telephones for use with a wide range of Plantronics headset styles. Select between your headset and handset at the touch of a button.
Separate controls allow independent adjustment of outgoing and incoming volume.
Mute switch cuts off your microphone so you can hear without being heard. This innovative device allows you to use one Plantronics headset, and easily switch it from telephone to computer audio use. You can use a single headset for conventional phone calls, or speech recognition, gaming, internet telephone calls, CDs, talk radio or DVDs. Very easy to set up and use, it features a sliding volume control, headset or handset switch, mute switch and a built-in headset stand. An optional on-line indicator signals when the headset is in use.