2.4G Wireless Microphone Audio Signal Transmitter Receiver Module Send Receive

 2.4G Wireless Microphone Audio Signal Transmitter Receiver Module

Sending Send Receiving Receive Board




 

Product Features:

 

1> Exclusive 2.4G encoding and decoding encryption and decryption algorithm, with strong transmission confidentiality ;

2> Wireless transmission distance 20-25 meters (open and unobstructed environment testing) ;

3> Adopting adaptive frequency hopping communication algorithm, with strong anti-interference ability;

4> Support reverberation and noise reduction functions ;

5> Easy pairing and connection ;

6> Low latency (15-20ms) ;

 

 

Technical Specifications (Transmission Module)

 

Working Voltage: 3.3V-5.0V

Working Current: 14mA

Working Frequency: 2.400-2.485GHz

RF Output Power: +6dbm

Antenna Type: PCB board mounted antenna

Audio ADC Sampling Rate: 16Bit/48Khz/64Kbps

Audio ADC Frequency Response Range: 20Hz-20KHz

Microphone Sensitivity: -36db

External dimensions: 24.5x15.3x3mm

Weight: 3g

Transmission Delay: 15-20ms (The delay between the input audio signal at the transmitting end and the output audio signal at the receiving end)

Communication Distance: 20-25 meters (open and unobstructed environment testing)

Transmission Mode: Send

 

 

Technical Specifications (Receiver Module)

 

Working Voltage: 3.3V-5.0V

Working Current: 13mA

Working Frequency: 2.400-2.485GHz

RF Sensitivity: -94dbm

Antenna Type: PCB board mounted antenna

Audio DAC Sampling Rate: 16Bit/48Khz/64Kbps

Audio DAC Frequency Response Range: 20Hz-20KHz

Audio DAC Output Power: 4mW (only output audio signals, cannot directly drive the speaker, needs to be connected to a power amplifier to drive the speaker)

External dimensions: 22.8x15.1x3mm

Weight: 3g

Transmission Delay: 15-20ms (The delay between the input audio signal at the transmitting end and the output audio signal at the receiving end)

Communication Distance: 20-25 meters (open and unobstructed environment testing)

Transmission Mode: Receive

 

 

Transmission Module Description:

 

<img src="https://image.pushauction.com/0/0/9d6ec1ab-2a80-4d2d-9320-70d1a9ac9281/3a1c0313-cf03-443a-83d0-7506f91922e1.jpg" border="0" alt="06.jpg " />

 

1> Button operation:

 

Short Press: Cyclic selection of noise reduction levels, Cycle between "Noise reduction shutdown"=>"Mild noise reduction"=>"Medium noise reduction"=>"Depth noise reduction", and The default setting for each startup is' Noise reduction shutdown '.

 

Long Press: Long press for 2 seconds to clear pairing memory and search for nearby receivers again. Once a receiver is found, it will automatically connect and memorize, and the next time it is powered on, it will automatically connect to the memorized device.

 

Double Click: Cycle between "Reverb on/Reverb off" each time you double click the button, The default setting for each startup is "Reverb off".

 

Notice:

 

About Noise Reduction: The noise reduction function can effectively remove ambient noise in noisy environments, such as wind noise, vehicle driving noise, and mixed human voices. Of course, it is not that the higher the noise reduction intensity, the better. The higher the intensity of noise reduction, the more your own voice will be lost, You can choose the noise reduction level based on the specific usage environment.

 

About Reverberation: The reverberation function can produce multiple gradually weakening echoes, It can beautify the human voice and is suitable for use in singing and speech environments.

 

2> Status indicator

 

The status indicator light is a red and blue dual color light, and the following are several status descriptions

 

Waiting for Connection (No connection): Flashing red and blue alternately (red light on for 500ms, blue light on for 500ms)

 

Connected: Blue light fast flashes twice within 5 seconds

 

3> The 0R resistor connected in series with microphone signal onboard

 

Removing this resistor disconnects the signal input from the onboard microphone to the chip. If you do not need to use the microphone onboard and use an external microphone or directly input the audio signal, you need to disconnect this resistor to cut off the signal from the onboard microphone.

 

4> Electret microphone on board

 

5> Input and output wiring pad

 

(1) MIC +: External microphone positive pole or audio signal cable

(2) MIC - : External microphone negative pole or audio signal cable GND

(3) GND: Power supply negative pole

(4) 3.3-5V: Power supply positive pole, input voltage range 3.3-5V

 

 

Receiver Module Description:

 

<img src="https://image.pushauction.com/0/0/9d6ec1ab-2a80-4d2d-9320-70d1a9ac9281/cc7dafb8-6e9e-4050-9fa2-a8b28df47a64.jpg" border="0" alt="07.jpg " />

 

1> Status indicator

 

The status indicator light is a red and blue dual color light, and the following are several status descriptions

 

Waiting for Connection (No connection): Flashing red and blue alternately (red light on for 500ms, blue light on for 500ms)

 

Connected: Blue light fast flashes twice within 5 seconds

 

2> Button (This button is reserved, no function)

 

3> Input and output wiring pad

 

(1) LINK:Paired connection status output, high level 3V output when connected, low level 0V output when not connected.

 

(2) CON:Key-button interface cable (reserved, no function).

 

(3) OUTR:Right channel audio output (If the transmitter and receiver are paired to create a microphone, its purpose is mono, so both OUTL and OUTR signals are mixed and output, There is no need to distinguish between left and right channels).

 

(4) OUTL/MIC:Left channel audio output, microphone audio signal output (If the transmitter and receiver are paired to create a microphone, its purpose is mono, so both OUTL and OUTR signals are mixed and output, There is no need to distinguish between left and right channels).

 

(5) AGND: Audio GND. Audio signals refer to GND, and connecting to GND at the filter capacitor at the power supply end can reduce digital noise. (AGND must be connected to GND outside the module).

 

(6) GND: Power supply negative pole

 

(7) 3.3-5V: Power supply positive pole, input voltage range 3.3-5V

 

 

Wiring Reference Diagram:

<img src="https://image.pushauction.com/0/0/9d6ec1ab-2a80-4d2d-9320-70d1a9ac9281/415f372d-f22e-46cb-9e0c-dc4d0743f572.jpg" border="0" alt="08.jpg " />

 

Pairing and Unpairing Instructions:

 

Long press and hold the pairing button on the transmitting end for 2 seconds to unbind the current receiving module and search for a new receiving module. Once it is found, it will automatically connect and memorize the currently connected receiving module. Each time the transmitting module is powered on, it will search for the last connected receiving module. If it is not the paired receiving module in memory, it will not be connected.

 

Notice:

 

At present, a transmitting module can only be connected to one receiving module, and cannot be connected to multiple receiving modules simultaneously. Similarly, a receiving module can only be connected to one transmitting module.

 

This module has the function of binding and pairing at the transmitting end, while the receiving end does not have the function of binding and pairing. Once the transmitting end A is connected to the receiving end A, the transmitting end A can only connect to the first connected receiving end A, but the receiving end A can connect to other transmitting ends B.

 

 

Packing List:

 

1pcs x 2.4G Wireless Microphone Audio Module

Paid Method
Please leave note for your special request (e.g. Colors or Size) in ebay when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.
Delivery Time
Item will be shipped within one business day after full payment is received.
Except The United States and Russia we shipped use Epack, We ship worldwide with standard shipping by Hong Kong Air mail. This international order may take longer to arrive, Normally the shipment to worldwide is used to take 35 to 40 business days, exclude Sat & Sun..
Delivery time depends on destination and other factors, if you still not received it in normal days. Please don’t worry, I hope you can give me a message before you do any action.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense.
Any feedback. We are committed to resolve all issues in a friendly and satisfactory manner.
We always reply to ebay messages within 1-2 business days. If you do not get a response from us, then please check your ebay message. we only reply by ebay message, no send email.
Dear buyers, we appreciate your business, if you are satisfied with our service, please leave me a postive rate, Your recognition will make us more confident to develop business and serve you better. Our goal is to make sure you are a happy buyer and pleasant shopping with us.
Feedback
Please give us ebay message before leaving any 1 or 2 ratings, neutral, negative feedback or open any dispute. We understand the concerns and frustrations you might have, and will do our endeavor to resolve the issues. Please give us the opportunity to resolve any problem. thank you very much! And hope to see you soon.
If you have any questions, please feel free to email our service specialists 24 Hours a Day, and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us.
We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 30 days, please contact us and we will arrange refund or resend.
PushAuction