The Poly DA80 USB audio processor gives your employees more flexibility. With this device they can take and disconnect calls, mute the sound or control the volume. In addition, the Poly DA80 can be quickly detached and suppresses the noise and echo device. The Poly DA80 is a USB audio processor, suitable for analog headsets that have high audio quality. This audio processor allows your employees to take and disconnect calls, mute the sound, and control the volume of the call. Because phone control is no longer required, your employees are more flexible and increase efficiency.