Features:

1.  3-chain outputs for daisy connection; each link can be linked up to 60 units.
2.  4×20 digits LCD screen displays conference mode, microphone’s volume and other conference settings.
3. Multi-Conferencing Operating Modes: (Normal/Chairman/Override)
4. MIC auto-off: Microphone turns off automatically when not being used in 30/45 seconds (chairman is not affected).
5. OPEN-MIC: Give limit to the quantity of open delegate microphones from 1-9.
6.  System auto-testing functions when power is on. When the connection is failed, the red ring of light will flash.
7. Equipped with RS-232 and RS-485 interface on the rear panel, which complies with image auto-tracking system.
8. The volume of microphones is displayed by numbers on the LCD screen. Users can press the button of the control unit to adjust the volume.
9.  The equipped XLR plug can connect other recording and audio equipment’s.
10.  Power supply: AC-110V-230V.
11.  Frequency response: more than 100Hz~16KHz; total harmonic distortion<0.1%; signal-to-noise ratio: more than 80dB.
12.  The control unit conforms with ROHS standard, which is not harmful to users’ health.