Take control of your VoIP calls with the Plantronics DA80 audio processor. With VoIP quickly becoming the business choice for communication, using a headset and adapter have become a necessary endpoint device. The DA80 adapter gives you easy to use inline volume controls, mute, and call answer ability with compatible software. This allows you to raise/lower your caller?s volume quickly to a good level for you, ensuring every call is crisp and clear. You can also easily mute your microphone with a push of a button, if you need to converse with a co-worker.