AKG CS3 CU30 Conference System Chairman Unit (with 30cm Gooseneck)The CS3 CU chairman unit is a microphone station with two operating modes. In "priority call" mode, the user can manually mute all connected delegate stations. In "next in line" mode the CS3 CU automatically activates the next delegate station in the waiting list. The station provides a built in speaker and 2 x 3. 5 mm stereo jacks to connect headphones for up to two delegates. The CS3 CU comes with a robust interface connector, which makes it easy to