The HCS-5300CE/80 is stylish and ergonomically designed chairman unit which has all the necessary facilities to enable the user to chair a conference. Similar in appearance and function to HCS-5300DE delegate unit, the HCS-5300CE chairman unit includes an extra microphone priority button. When pressed, the priority button causes all currently active delegate microphones to be switched off temporarily or permanently, allowing the chairman to take control of the meeting. Separate rechargeable Lithium battery packs can be removed and replaced in a matter of seconds, providing maximum flexibility in recharge scheduling.