Product Introduction:

1. The system adopts a combination of teaching character and analog circuit technology, with a high fidelity circuit design that can produce high-quality audio effects.

2. Use up to 20 sets simultaneously in the same environment. Each set can support multiple chairpersons and 256 delegates to use.

3. It has multiple conference modes and conference recording function.

4. The usage distance is 60-100 meters, depending on the usage environment!

Receiver parameters:

Usage frequency:640-690MHz Data frequency: 410-470MHz Modulation method: FM

Frequency response: 50Hz to 15KHz Signal source sensitivity: -104dbm

Sound output size: 6.35 mixed output 250mV Karon balanced output 140mV

Distortion:<1%

Signal to noise ratio:      90db

Working voltage: DC12-18V Working current: 750mA

Front button description:

1. IR: .Infrared to frequency IR

2. MENU:Menu key,press ok

3.  SYNC: Press the button to synchronize the host with the microphone
       channel Long press this button to switch between Chinese/English

4.  LOCK: Press the button to lock the screen. You cannot change any
       information. Press the button again to release the lock

5. CH1: Press the button and select Channel 1

6.  CH2: Press the button and select Channel 2

7.  CH3: Press the button and select Channel 3

8.  CH4: Press the button and select Channel 4

9. VOL- : Button-back/long press the Mp3 sound to decrease

10.VOL+ : Button-forward/long press Mp3 sound Riga

11.          : Blinking indicates that the Bluetooth is connected

12.REC: Record key.Click start click stop

13.USB: USB-U Disk

I

14.           : If the button blinks, recording is being performed

15.POWER: Power switch

Back button description:

1. ANT WIFI: Plug in wifi antenna

2. DC 12-14: DC12-14V 1000mA power input

3. ANT D: Insert antenna D

4. ANT C: Insert antenna C

5. MIX-BAL: Insert the XLR Canon cable

6. MIX OUT/PUT: Insert the 6.3 Canon cable, 6.35 Audio output.

7. ANT B: Insert antenna B

8. ANT A: Insert antenna A

Conference Microphone Unit Features

1. The microphone is equipped with a display screen to display the frequency, working status, and working mode of the microphone.

2. The switch adopts an imported silent touch switch to ensure the durability of the switch.

3. The ultra-low power design uses three AA alkaline batteries to continuously work for 8-12 hours.

4. The chairman priority function can turn off the representative microphone to maintain order in the venue.

Technical indicators:

Working power supply:

1. DC2.8-4.5V; Power consumption: 380mW (speaking state)

2. Audio channel: Communication mode: UHF wireless mode (unidirectional)

3.Frequency range: 640-690MHz

4. Modulation method: FM

5. Maximum modulation amount: 50K

6. Radiated power:        -F12dBm

7. Frequency deviation:      < 15pm.

8.Base size (length/width/height): 15 * 11.5 * 7cm microphone length: 43CM

Wireless microphone unit description

1. Pickup head

2. Lamp ring

3. Display screen

4. Speech button&power switch

5. Control buttons (Chairman unit only)

Operating instructions

Assign channels to microphones

Frequency matching is an operation that allows the microphone and host to recognize each other. It should be done before using the conference system for the first time and when increasing or decreasing the number of
microphones

1. Keep the microphone base in a closed state

2.Short press the SYNC button on the host (front panel io) and rotate it left and right to the desired serial number through the scroll
wheel (front panel 10)

3. Press and hold the power on button of the microphone base for at least

5 seconds, and the microphone base will enter automatic frequency

synchronization mode. After a while, the microphone will be assigned to the channel selected in step 2

4. After the current microphone alignment is completed, the display

screen of the host will automatically jump to the next sequence number.

If you need to continue the alignment of other microphones, please repeat step 3. If all microphones have already been aligned, please briefly press the SYNC button (front panel (D) of the host to exit the alignment mode

Switch Meeting Mode

The host is equipped with a built-in first in, first out, limited number of speakers, and chairman only speaking mode, which can meet different occasions according to the needs of the meeting

1. Press the scroll wheel on the front panel (front panel (2) to enter the conference mode selection state

2. Rotate the scroll wheel left and right until the desired meeting mode is reached

3. Wait for 5 seconds for the machine to automatically complete the settings and return to the homepage