Sennheiser UI 760

Sennheiser, 1.5V, RJ 9 4/4, 2.5mm jack, Titan. Overview
The UI 760 is a switch box that gives the user a great comfort: it lets you switch directly between handset and headset, and between phone and PC. The Dynamic Volume Control keeps all incoming calls at the same volume and blocks surges in sound, and the Sound Clarity System filters out noise and enhances the caller’s voice.

Features
Dynamic Volume Control keeps all incoming calls at the same volume and blocks surges in sound
The Sound Clarity SystemTM filters out noise and enhances caller’s voice
Speaker amplification – so you hear all the details loud and clear
Switch directly from handset to headset, and from phone to PC
Ability to mute the microphone for privacy
Connects with digital or analogue telephones
Automatic Power Save keeps battery working for up to two years
Complies with the EU „Noise at Work“ directive (EU Directive 2003/10/EC)