The microphone has video tracking ,voting(five key) and discussion functis.
The microphone unit has built-in high fidelity of capacitor sound head, its sound quanlity is clear and low noise,it has strong pickup of distance.
It has uppression the howling function,when the microphone is turn on, the loundspeaker will be automatically turn to prevent the voice transfusion.
The unit has built-in speaker and headphone jack,it can play background music and expansion the voice.
The annular blue indicator lamp can show the working sate on the microphone.
The ON/OFF state, dynamic level and volume of microphone can show on the LCD.
The chairman microphone can turn down the delegate unit by priority button.
The meeting model:FIFO/FREE/LIMIT/CHARIMAN.
The base of material is metal, and the PVC is aluminum.
It can be desktop and embedded for installation , to meet a variety of meeting places installation requirements.
Built-in speaker:8 /2W/70MM
Type:capacitance
Directivity:single
Frequency response:60Hz-14Hz
Sensitivity:-452db 1KHz
Input voltage:DC 24V
The minimum output impedance:1K
Signal to noise ratio:>68db(A)
Socket:8P terminal block
Cables:2.1M/8P Shielding wire
Accessories: windyproof sponge,3M of T wire
The microphone unit has discussion and auto-tracking of functions.
It using the flocking to process.
It has built-in antena and rechargeable lithium battery for each unit and equip mini usb charger.
The annular blue indicator lamp can show the working state on the microphone.
The chairman unit can set the system working model:fifo, limit and free.
The unit has built-in high fidelty of capacitor sound head , its sound quanlity is clear and low noise.
The chairman unit can turn down the delegate unit for anytime by priority button.
Its design patent of appearance.
Power:dc3.7v-5v
Power consumption:â?¦360mw(standby state), â?¦630mw(working)
Working temperature:-10â??-40â??
Length of gooseneck:380mm
Frequency range:500mhz-950mhz
Maximum modulation:60k
Radiation power:â?¦+9dbm
Frequency deviation:
1.COTT-QD60 high sensitivity audio monitoring microphone specially designed for public security organs and procuratorate industry for synchronous monitoring recording.
2.Classic black and white with clear lines, the overall design does not lack of fashion and retro-style.
3.Using advanced squelch circuit design, super strong noise reduction, its ability which can resist to the squeal is strong.
4.High fidelity silver plated vibration membrane capacitor microphone, audio monitor range up to 100 square meters.
5.Adopt Dolby Pro Logic surround sound system, equip with high-speed voice processing units, two level dynamic noise reduction processing, and automatic gain circuit to enhance distance voice, so that the effect of audio playback is more clear.
6.The "electronic noise dynamic closed loop suppression circuit" of unique design, completely eliminate "hiss" electronic noise.
7.The latest digital module maximally improves the processing time, solves the delay situation of previous digital sound pick-up .
8.Long audio signal transmission technology, use the RVVP3*0.5mm2 shield cable, it is distortionless within 3km.
9.Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc.
10.Widely used in public security organs, procuratorate industry, banks, schools, interrogation room, prison and other indoor environment for synchronous video audio monitor recording.
