Monday Kids 2.4GHz Wireless Audio Transmitter and Receiver Board MIC Audio Signal Decoder Transceiver Module 20-30M Transmission Distance

2.4GHz Wireless Audio Transmitter and Receiver Board Microphone Audio Signal Decoder Transceiver Module 20-30M Transmission Distance

2.4GHz Wireless Audio Transmitter with MIC

2.4GHz Wireless Audio Receiver

1.Feature:

1).Its wireless receiver distance can reach 20-30 meters (tested in an unobstructed environment in an open field).

2).It adopts adaptive frequency hopping communication algorithm and has strong anti-interference.

3).It supports reverb and noise reduction functions.

4).It is simple to pair and connect with the transmitter module.

5).Its response latency is low,only 15-20ms.

2.Parameter:

1).Product Name:Microphone Audio Receiver

2).Working Voltage:DC 3.3V-5.0V

3).Working Current:14mA

4).Working Frequency:2.4GHz-2.485GHz

5).RF Sensitivity:-94dbm

6).Antenna Type:PCB onboard antenna

7).Audio DAC Sampling Rate:16Bit/48KHz/64Kbps

8).Audio DAC Frequency Response Range:20Hz-20KHz

9).Audio DAC Output Power:4mW (only output audio signal,can not be directly connected to the speaker,need to connect to the amplifier and then connect to the speaker)

9).Transmission Delay:15ms-20ms (the delay between the input audio signal at the transmitter and the output audio signal at the receiver)

11).Communication Distance:20-30meters (open and unobstructed environment)

12).Transmission Method:receive signal

13).Work Temperature:-25~85

14).Work Humidity:5%~95%RH

15).Size:25*15*3mm

3.Status Indicator:

1).The status indicator is red and blue two-color lights.

2).Waiting for connection (no connection):red and blue flashing alternately (red light on for 500ms,blue light on for 500ms)

3).Connected:The blue light flashes twice within 5 seconds.

4.Pin Description:

1).3.3-5V:Input Voltage DC 3.3-5V

2).GND:GND

3).AGND:Audio ground.Audio signal reference ground,connect to GND at the power supply end filter capacitor to reduce digital noise (AGND must be connected to GND outside the module).

4).OUTL/MIC:left channel audio output,microphone audio signal output (because the use of one-to-one microphone is mono,so the OUTL and OUTR signals are the same mixed output,regardless of the left and right channels) .

5).OUTR:Right channel audio output (because the one-to-one microphone is used for mono,so the OUTL and OUTR signals are the same mixed output,regardless of the left and right channels).

6).CON:key port line (reserved,no function).

7).LINK:Paired connection status output,with connection output high level 3V,no connection output low level 0V.

5.Pairing and Unpairing Instructions:

1).Press and hold the transmitter pairing button for 2 seconds to unbind the current receiver module and re-search for a new receiver module.After searching,it will automatically connect and memorize the currently connected receiver module.Each time the transmitter module is powered on,it will search for the last connection.Receiver modules that have been paired and not memorized and paired will not be connected.

2).Note:At present,only one transmitter module can be connected to one receiver module,and one transmitter cannot be connected to multiple receivers at the same time or one receiver can be connected to multiple transmitters to transmit audio at the same time.

3).This module has the function of binding and pairing at the transmitting end,and the receiving end does not have binding and pairing.That is,once the transmitter A is connected to the receiver A,the transmitter A can only be connected to the receiver A that was connected for the first time,but the receiver A that has been connected can still be connected to other transmitters B.

6.Note:

1).About noise reduction:The noise reduction function can effectively remove ambient noise such as wind noise,vehicle driving noise,mixed human voices in a noisy environment.Of course,it is not that the higher the noise reduction intensity,the better.The higher the noise reduction intensity,the more your own voice will be intercepted.You can choose the noise reduction level according to the specific use environment.

2).About reverb:The reverb function can produce multiple reverberation effects that gradually weaken,which can beautify the human voice and is suitable for singing and speech environments.