IR Wireless Conference System Chairman Unit/Delegate Unit PA-850C/PA-850D 
	●Easy to move on the conference table 
	●Microphone pipe can be pulled out, and extended pipe is optional 
	●Condenser microphone equipped with windshield cover 
	●LCD can display microphone ID, signal level,battery level, microphone status, control channel, etc. And LCD color red/blue are optional. 
	●Equipped with microphone on/off button and indicator, also has five function buttons to set microphone ID, control channel, contrast ratio and backlight time. 
	●Auto-Close: Microphone will turn off automatically if there is no action to this microphone in 99 seconds. 
	●Microphones will shut off the power in 60 seconds to save battery power if system communication is error. 
	●LCD will display “IR Signal Weak” if the IR signal is weak when microphone working. 
	●Built-in rechargeable and replaceable batteries, they can be used approx. 8 hours for continuous speech and approx. 30 hours for standby. 
	 
	Including the functions of the Delegate Unit ,Chairman Unit also has following functions: 
	●Chairman Unit can be turned on at any time. 
	●Support 1 Chairman Unit in one system,and the ID number should be 1 
	●Chairman Unit can turn off all Delegate Units by priority button at any time 
	●Chairman only mode is that when Chairman pressed priority button, then all Delegate Units can not be turned on again until Chairman quit this mode. 
	 
	PA-850C/PA-850D (With Discussion function) 
	PA-851C/PA-851D (With Discussion/Video Tracking functions) 
	PA-852C/PA-852D (With Discussion/Voting functions) 
	PA-853C/PA-853D (With Discussion/Voting/Video Tracking functions)