7
1)
Annular red indicator lamp to show the microphone state.
2)
Unidirectional electret MIC
3)
LCD
4)
IR sensor
5)
Menu/Back key: Press this key to enter menu setting or back after setting
6)
Left key
7)
Right key
8)
MIC ON/OFF key
9)
Chairman Priority
10)
Up key
11)
Down key
12)
Microphone power switch
13)
DC power input
1.3.5 Parameter of infrared conference system microphone unit
Items
Parameter
Audio channel
Transmission method
Wireless infrared
Audio channel
4
Carrier frequency band
6MHz-8MHz
Modulation method
FM
Infrared radiator consumption
+10dBM
Mic sensitivity
-44dB±2dB
Frequency response
100Hz-10KHz
S/N Ratio
>
70dB
T.H.D.
<
0.5%
Reference
sound
receiving 10-30cm
Data control
channel
Transmission method
Wireless
Data channel
14
Frequency Range
901MHz-927MHz
Modulation method
FSK
Receiving sensitivity
-85dBM
Transmission consumption
10dBM
Communication rate
100KBPS
Microphone
Battery
LIP battery12V/4000MAH
Consumption Rating
8W
Operating temperature range
0-40 degree
Length of gooseneck
400mm (optional)
Dimensions
220×155×69mm
N.W
815g (with battery)