Sign up

Home /
Audio Signal Transceiver /
Bluetooth Receiver

Bluetooth Audio Receiver Board V5.0 & 2 x 3W Audio Amplifier– BRB3v3[750]

★★★★★(0 recommends)



Add To Cart
Buy Now



Functional Cables Kit for BRB3



Bluetooth Pairing Name Programming (store@sure-electronics.com)




AA-AB41136 is a Bluetooth receiver board with Bluetooth V5.0, supporting various audio format as aptX, aptX HD, aptX LL, SBC and AAC. High performance DAC ensures high quality audio transmission. Terminal interfaces mounted for analog output make it easy for integration with audio amplifiers. In addition to Bluetooth receiver board, AA-AB41136 can work as a low power stereo audio amplifier, delivering 3W per channel into a 4Ohm load, quite suitable for bookshelf amplifier, desktop audio, garden audio, hotel audio and DIY applications that needs wireless audio connection. A DC5V-21V power supply is required.

Integrated with Bluetooth V5.0

AA-AB41136 employs Bluetooth 5.0 module for audio input, which supports various audio formats and high receive sensitivity with RF power up to 9dBm and -90dBm. There is a built-in antenna equipped on this board. An external antenna port is also provided on the board to ensure the stable connection and high audio performance even if this BRB3 is installed into a speaker or a cabinet. We have tested in open space with no interference, the Bluetooth wireless range can reach up to 80m. When input with maximum volume, the max line output voltage is 0.9Vrms. BRB3 supports Bluetooth name customization as well.

Low Power Stereo Audio Amplifier

This Bluetooth receiver board – BRB3 can also work as a stereo low power audio amplifier, outputting 3W per channel. That means, you can directly connect BRB3 with speakers for audio playback. Low power and wireless audio connection make BRB3 rather applicable to portable speakers, hotel audio, desktop audio and DIY applications.

High Quality Audio Performance

Thanks to carefully selected Bluetooth 5.0 module and engineers’ dedicated test and debug, BRB3 provides extremely high quality audio performance, which can definitely meet your Hi-Fi requirements.

Supporting Battery Power

Apart from power supply, BRB3 supports battery power, which further improves the portability of the audio system. It is recommended to use WONDOM BCPB series (battery boards with charging circuit) to power BRB3 as there is no charging circuit equipped on BRB3.

Low Power Consumption and Long Playback Time

BRB3 features low power consumption and high efficiency. You can enjoy music for long time even if you are outside and power it with a battery board. The quiescent current of the whole BRB3 board is 10mA. When the music is stopped, the power output stage would shutdown automatically to reduce power consumption.

Easy for Integration and Control

BRB3 is in compact size as 3’’ x 2’’, which means that it can be installed into any audio project without worry about occupying too much space. Four screw holes are offered for easy installation and immobilization. All the necessary connectors for normal connection and playback are provided on the board, therefore, you just need to plug in cables and enjoy music. Bluetooth pairing cancellation function is equipped on BRB3 for simple control.

Functional Cables Kit Optional

Taking convenient integration into account, we prepare a functional cables kit for BRB3, which includes 1pc Bluetooth antenna, 1pc Bluetooth pairing cancellation cable with button, 1pc 3.5mm line output cable, 1pc PH-4pin cable, 1pc speaker output cable and 1pc Bluetooth LED indicator cable. As for details, please refer to Functional Cables Kit for BRB3 (AA-AA11435).

Package Includes

1pc AA-AB41136

Video: link

  • Board TypeBoard
  • inputBluetooth,
  • outputRCA, 3.5mm AUX,
  • Control InterfaceHardware
  • Size3 x 2 inches (76.2mm x 50.8mm)
  • Power Voltage5V-21V
  • Bluetooth Ver5.0
  • High Receive Sensitivity with RF power up to 9dBm and -90dBm
  • Supporting Various Audio Decode Formats as aptX, aptX HD, aptX-LL, SBC & AAC
  • Bluetooth Pairing Cancellation
  • Supporting 2 x 3W Speaker Output
  • Single-end Audio Signal Output
  • Wide Power Supply Range
  • Bluetooth LED Indicator
  • Supporting Battery Power
  • Reverse Polarity Protection
  • Audio output distortion degree of 0.5% or less
  • Size: 3.00 x 2.00 inches PCB Size
Specifications typical @ +25℃, Powered by 12V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter Conditions Min. Typ.  Max. Units
Power Supply - 5 12 21 VDC
Line Output Max input volume 0 - 0.9 Vrms
Quiescent Current Vin=12V - 10 - mA
Working Current Vin=12V, No speaker output, BT connected, Minimum input volume - 50 - mA
Maximum Current Vin=12V - - 0.7 A
BT Wireless Range No external antenna connected Open space, no interference - - 80 m
External antenna connected Open space, no interference - - 80 m
Operating Temperature* - 10 20 50
Storage Temperature* - -20 20 50
*Notes: If you need industrial grade temperature, please contact with us.








23 Feb 2023

Hello. Way back in 2017 I puchased "Bluetooth V4.0 Audio Receiver Board w APT-X - BRB3 Item# AA-AB41136" from you, and have had it in my DIY home stereo since. It has been working rather well, I have been overall happy with it. However when no bluetooth device is connected, you can hear a buzzing in the speakers which mimics the flashing of the LED on the board. Has this V3 solved this problem? What other improvements have been made since the 2017 version? The one I purchased died for some reason about a week or two ago, it powers on however you simply cannot connect to the BT anymore, so I am looking to replace it with a newer model. I have it paired with AA-AB32192 and AA-AB31511 amplifiers.

Hello, James. BRB3v3 is the upgrade version of BRB3. First, it employs Bluetooth V5.0, supporting various audio format as aptX, aptX HD, aptX LL, SBC and AAC, featuring 80m wireless range and high quality audio transmission. Second, BRB3v3 can work as 2x3W amplifier board in addition to Bluetooth receiver. Finally, BRB3v3 supports battery power, highly portable and flexible. Wish this could help you. Have a nice day~


05 Aug 2022

Sure Electronics - thanks for My BRB3v3. Delivery was in a flash, the module works excellent - troubleless pairing, very good sound quality. Good job !

Hello, Szymon. It's glad to hear that and thank you for your kind feedback. We will keep providing high quality products and services for you. If there is any question, please do not hesitate to contact us. Have a nice day~


23 Jul 2022

Hi. I have two questions. 1. I’d like to build in your module into my DIY analog audio amplifier, therefore I need only DAC audio output, without assembled PA section. Is it possible to order your board without power amplifier, to decrease the possible hum & noise ? 2. Is it possible to customize the BT name ? Obviously I’m ready to pay for such extra requirements. Thank you !

Hi, Szymon. Thank you for your interest in our products. 1. If you only want Bluetooth receiver board, you can take a look at our BRB4 or BRB6P. https://store.sure-electronics.com/product/AA-AB41155 https://store.sure-electronics.com/product/AA-AB41158 If you want Bluetooth V5.0, we can help you tear down the amp chip on BRB3v3 as well. Extra fee would applied. If you are interested, please contact us with store@sure-electronics.com for further discussion. 2. Yes. We provide Bluetooth name reprogramming service for our customers. You can purchase that service together when you place an order and leave us a remark or send us an email to tell us the name you want. We will rename it before arranging shipment. Wish this could help you. Have a nice day~


03 Mar 2022

Regarding the post from Jeff.Annessa from Jul 2021. I am wanting to increase the gain of BRB3v3 from 12dB to 15dB also. My question is how do I change ATTO from 0 to 1? I see that you say to set R13 as 10K and R21 as NC. How do I do this or do I have to order it this way? Thanks so much Barney

Hello, Barney. You can contact us with store@sure-electronics.com about your requirements. Wish this could help you. Have a nice day~


14 Sep 2021

Is there a volume control board that can be used with this board

Hi, Preston. Thank you for your interest in our products. If you use BRB3v3 as Bluetooth receiver board, you can add a volume control board between BRB3v3 and the audio amplifier board. You can choose any one of our volume control boards except AA-AA11117 and AA-AB41152. If you use BRB3v3 as a low power amplifier, there is no volume control board to be used with it. Wish this could help you. Have a nice day~


10 Jul 2021

I replaced an older sure electronics Bluetooth board with this Bluetooth board and have noticed a significant decrease in output. Is there a difference in the sensitivity? Is there something I can change like a resistor to increase the output so it matches the output of the previous board?

Hi, Jeff. Please kindly take reference of the attached picture. You can improve gain to desired value according to the table. Now, the gain of BRB3v3 is 12dB. According to the cable, the configuration is as follows: ATT2 = 1 ----> R23 = 10k, R15 = NC ATT1 = 0 ----> R14 = NC, R22 = 10k ATT0 = 0 ----> R13 = NC, R21 = 10k Assume that we want gain to be 15dB. According to the table, ATT2 : ATT1 : ATT0 = (1 0 1). So we will need to change ATT0 from 0 to 1, which means we need to set R13 as 10k and R21 as NC. Wish this could help you.


10 May 2021

Can you change the bluetooth pairing name and customize the antenna length?

Hi, Nikolai. Thank you for your interest in our products. Yes. We can change the Bluetooth name for you. Please send the name you want to store@sure-electronics.com after you purchase the Bluetooth pairing rename service. As for the antenna length, the standard length is 10cm. We can help you customize the length, please note MOQ would be required. You can contact with us (store@sure-electronics.com) for further discussion. Wish this could help you.

Copyright 2023 @ Sure Electronics Co., Ltd.