Wireless USB teaching microphone, anti-interference wireless USB microphone, USB wireless conference microphone, USB wireless microphone

2020-12-14 09:14:05 fandoukeji

Features:


* 2.4G wireless microphone


*Electronic pointer


* PPT Page Turner


* Air mouse


*Multimedia control


*Flashlight (infrared pairing)


Features:


*Unique 2.4G teaching matching program


*Automatically search for clean channels


*Super strong anti-WIFI interference ability


* LCD display working status


* Automatically shut down after 30 minutes without voice


 


1. Features


1. It integrates the six functions of wireless microphone, electronic pointer, PPT page turner, air mouse, multimedia control and flashlight. The infrared diode can be used to replace the flashlight LED lamp to realize the infrared pairing function.


2. The LCD screen displays the working mode, volume level, battery level, connection status, and mute status.


3. Special anti-interference design to resist WIFI interference.


4. Working frequency band: ISM 2.4GHz free frequency band.


5. There are 10 preset channels, one-to-one pairing for transmitting and receiving.


6. Audio delay <5mS.


7. GFSK digital modulation/demodulation.


8. SNR 80dB, dynamic range 81dB, receiving sensitivity -85dBm


9. Built-in PCB antenna can reduce cost and development time.


10. The channel quality is not good, and automatically mutes when the bit error rate is high.


11. 16dBm RF output power.


12. The transmission distance is more than 50 meters in open areas.

无线USB教学麦 抗干扰无线USB话筒 USB无线会议麦 USB无线麦克风

无线USB教学麦 抗干扰无线USB话筒 USB无线会议麦 USB无线麦克风

Wireless USB teaching microphone, anti-interference wireless USB microphone, USB wireless conference microphone, USB wireless microphone

Wireless USB teaching microphone, anti-interference wireless USB microphone, USB wireless conference microphone, USB wireless microphone

Wireless USB teaching microphone, anti-interference wireless USB microphone, USB wireless conference microphone, USB wireless microphone

发射器的按键说明

按键

多媒体模式

PPT模式

鼠标


激光教鞭开关

激光教鞭开关

激光教鞭开关

L

鼠标的左键

鼠标的左键

鼠标的左键

R

 飞鼠功能开关

飞鼠功能开关

鼠标的右键

O

 手电筒按键

手电筒按键

手电筒按键

上一曲(电脑播放器)

上一页

上一页

下一曲(电脑播放器)

下一页

下一页

??

音量减(电脑系统)

音量减(无线话筒)

幻灯片放映模式下,按住移动光标即可画线

??

音量加(电脑系统)

音量加(无线话筒)

幻灯片放映模式下 按一下清除画线


电源开关机

电源开关机

电源开关机

P

播放/暂停(电脑播放器)

播放/退出(幻灯片放映){F5/ESC}

播放/退出(幻灯片放映){F5/ESC}

M

模式切换

模式切换

模式切换

B

幻灯片放映模式下的一键黑屏《B》

幻灯片放映模式下的一键黑屏《B》

幻灯片放映模式下的一键黑屏《B》

1. Operation instructions:


YZD1701Tx transmitter has LCD display, 12 function buttons, built-in microphone and external microphone port, internal lithium battery and charging, laser pointer, flashlight, computer recording and other functions. Before using the product for the first time, you need to install the computer amplification software developed by our company. This software has the function of recording in addition to the amplification function.


      1. Pairing


The receiving equipment is installed in each classroom. When the teacher is in class, walk within 3 meters of the receiver to turn on the power of the transmitter and hear the connection prompt.


      2. Adjust the volume (??/??)


          In multimedia mode, short press the volume up/down (??/??) button on the transmitter,


Adjust the volume of the computer system;


In PPT mode, short press the volume up/down (??/??) button on the transmitter to adjust


The section is the volume of the wireless microphone;


       3. Page up/page down (▲/▼)


         In PPT or mouse mode, short press the page up/page down (▲/▼) button on the transmitter, you can


Realize the page turning function commonly used in teaching


      4. Computer player previous/next song (▲/▼)


           In multimedia mode, short press the previous/next (▲/▼) button on the transmitter to


Realize the function of the previous song and the next song of the multimedia player


      5. Computer player play/pause


            In multimedia mode, short press the "P" button on the transmitter to remotely control the computer


Play and pause of the player.


      6. Flying squirrel function


            In mouse mode, fly the transmitter to move the cursor


               In PPT or multimedia mode, hold down the "R" key and fly the transmitter to move the cursor


      7. Play/exit of the slideshow


         In PPT or mouse mode, short press the "P" key on the transmitter to remotely play and pause the slideshow.


       8. One-click black screen for slideshow


          In the slide show mode, short press the "B" button on the transmitter to switch between black screen and play modes


 


       


 


 


 


2. Power parameters


          Transmitter built-in battery: 420mA


          Transmitter power consumption: 37mA


 Transmitter charging current: 300mA


          Receiver board power consumption: 30mA


          Supply voltage of receiving board: 3.6~5V


  3. Signal port parameters:


    launcher


             Microphone preamplification: 15dB


              Built-in microphone sensitivity: -44dB


Receiving board:


Standard USB microphone


Standard USB mouse


Standard USB keyboard


 


4. Status indication:


          Pairing instructions


                     In pairing mode,


        Link instructions


 


                Charging instructions


 


        Low battery indicator