The Best Micro Bluetooth Module of 2025 – Reviews & Buying Guide
After hours researching and comparing all models on the market, we find out the Best Micro Bluetooth Module of 2025. Check our ranking below.
2,637 Reviews Scanned
- Wiring: VCC → 3.7~24VDC power supply, GND → ground (common terminal), L OUT → amplifier left channel input, R OUT → amplifier right channel input, GND (audio) → amplifier GND.
- Jack: 3.5 mm, Dimensions: 44x30x10mm, Transmission Distance: 15 meters (line of sight, unobstructed), Module Protection Mechanism: Reverse connection protection.
- Short-circuiting the "Power On/Off Contact" for 2 seconds sets the decoder board to power on/off, simple to use and easy to modify.
- Suitable for various audio systems, DIY electronics projects, and car audio receiver modules; supports mobile phones, tablets, computers, and other devices.
- Bluetooth Version: 5.0, stable wireless audio transmission, faster connection.
- PCB size: 23*16*2.5mm
- Pin pitch: 2.54mm
- Application: Wireless speaker, Wireless audio, Wireless headphone
- Easy to use. Bluetooth 4.1 technology, strong versatility.Wireless transmission distance >= 10 meters.
- Intuitive LED indication.Line input stereo.
- Package Included: 1Pcs Bluetooth 4.1 Stereo Sound Module Audio Transmitter Stereo Module Wireless Speaker Headphones(If there are any problems with the product, please send us pictures.Tell us more details about this problem.)
- Thank you so much for your purchasing from our store.Any question ,please feel free to contact us.
- Bluetooth module HC-05 Master and slave Two in one module. Please note: iOS devices (iPhone) are not supported
- Use the CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards
- Module working voltage 3.6 V to 6V
- Default rate of 9600,default pin:1234, the user can be set up.click the button into AT MODE
- Can be switched via AT commands as master or slave mode , the device can be connected via AT commands specified
- PARAMETER --- input voltage range DC 5V-12V, support micro USB 5V power supply; blue~tooth version 4.2.
- APPLICATION --- headphone, speaker, home stereo system DIY.
- INPUT METHOD --- 3.5mm AUX input & 2.54mm 3P AUX input.
- OUTPUT METHOD --- 3.5mm audio output & 2.54mm 3P audio output.
- LED INDICATOR --- indicates status of waiting for a connection/connected/audio playing.
- The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module
- HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
- Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
- Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode.
- 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board
- HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your DIY project, and then you can use your android phone to control some gadgets, such as: switch, LED.
- Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
- Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode.
- 6 PIN Dupont Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module.
- Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this Bluetooth 2.0 Serial Wireless Module.All questions will be answered within 1 working day.
- The NRF5280 development board has a 3.7V lithium battery interface and a software switch that can cut off the power of the LED. When turned off, the standby power consumption can reach 1mA.
- NRF52840 is a high-performance, low-power wireless SoC chip launched
- The NRF52840 chip uses an ARM Cortex-M4F processor, clocked at 64MHz, with built-in 1MB of flash memory and 256KB of RAM
- It also has a variety of peripherals, including ADC, PWM, SPI, I2C, UART, USB and GPIO, etc.
- NRF52840 also supports a variety of security functions, such as AES encryption, SHA-256 hashing and True Random Number Generator (TRNG)
- Bluetooth 5.0 : This car Bluetooth audio adapter supports Bluetooth 5.0, low power consumption, reliable use and universal accessories suitable for most vehicles.
- Customize your mobile phone or tablet to the Bluetooth module and then select AUX from the radio. You can play music with your mobile phone.
- Application : With this adapter, you can listen to music from a mobile phone/tablet/MP3 player through the car speakers. Used for wireless transmission of music, navigation and phone
- Easy to use : The car Bluetooth audio adapter is easy to install, just plug and play, without complicated tools, space-saving, convenient and practical.
- Material : The car Bluetooth audio adapter is made of copper and plastic, durable and stable and a high quality product.
- 1.Use the CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards
- 2.Module working voltage 3.6 V to 6V
- 3.HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your for Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
- 4.6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your for Arduino Board
- 5.Can be switched via AT commands as master or slave mode , the device can be connected via AT commands specified
Last update on 2026-05-28 / Affiliate links / Images from Amazon Product Advertising API
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