Home page Home page Hobbies & Garden Development boards Bluetooth 4.1 Audio Receiver Module with USB-C Connector Sound Decoder Board 30 x 30 mm Stereo Jack 3.5 mm Power Supply 3.7 to 5 V Red
Bluetooth 4.1 Audio Receiver Module with USB-C Connector Sound Decoder Board 30 x 30 mm Stereo Jack 3.5 mm Power Supply 3.7 to 5 V Red

Bluetooth 4.1 Audio Receiver Module with USB-C Connector Sound Decoder Board 30 x 30 mm Stereo Jack 3.5 mm Power Supply 3.7 to 5 V Red

Small board for wireless music transmission from a mobile device to older speakers and amplifiers. Powered via USB-C or from a battery with a stereo output jack. Full description
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€8.69
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Overview
Bluetooth 4.1 Audio Receiver Module with USB-C Connector Sound Decoder Board 30 x 30 mm Stereo Jack 3.5 mm Power Supply 3.7 to 5 V Red

This wireless audio receiver is a small electronic board that adds Bluetooth to older speakers, amplifiers, headphones, or home audio systems. The module operates with Bluetooth 4.1 technology and is powered via a USB-C connector. A phone, tablet, or laptop pairs with it just like a regular wireless speaker, and music is then played directly to the connected device. The board measures 30 x 30 mm, making it suitable for smaller enclosures or inside a speaker. It is ideal for DIY enthusiasts looking to revive old technology or build their own wireless speaker.

The audio output comes from the stereo 3.5 mm jack, to which you can connect headphones, active speakers, or the AUX input of an amplifier. Next to the jack, there are also soldering pads on the board for the left and right channels, allowing the output to be wired directly to the amplifier's input. Power is supplied via a USB-C cable, which is used by most phones, chargers, and power banks today, so you do not need to find a special adapter. For permanent installation, there is a soldering pad BAT for an external lithium cell with a voltage of 3.7 V. The module operates with a power supply voltage of 3.7 to 5 V, and a blue LED indicates the connection.

  • Type – Bluetooth audio receiver and sound decoder in the form of a board
  • Bluetooth Version – 4.1
  • Supported Profiles – A2DP, AVCTP, AVDTP, AVRCP, and HFP
  • Range – 15 m in direct line of sight
  • Power Supply – USB-C 5 V or soldering pad for 3.7 V lithium cell
  • Power Supply Voltage – 3.7 to 5 V
  • Audio Output – stereo 3.5 mm jack and soldering pads for left and right channels
  • Signal-to-Noise Ratio – 90 dB
  • Dynamic Range – 91 dB
  • Total Harmonic Distortion THD+N – -70 dB
  • Crosstalk – -86 dB
  • Indication – blue LED in Bluetooth mode
  • Dimensions – 30 x 30 mm
  • Board Colour – red
  • Package Contents – 1 Bluetooth audio receiver board without cables and casing

The module is supplied as a bare board without a casing, so when embedding it, protect it from moisture, dust, and short circuits. It is advisable to secure the board using the mounting holes in the corners and ensure that the underside does not touch any metal parts. The antenna is printed directly on the board, so do not cover it with metal, as this may reduce the range. When soldering the power and audio wires, proceed carefully and observe the correct polarity.

The wireless receiver with a USB-C connector is a practical solution for getting music from a mobile device to equipment that does not have Bluetooth. Thanks to its compact dimensions and power supply via USB-C or from a battery, it can be easily integrated into a home project. The output via the 3.5 mm jack can connect both headphones and an amplifier, and the soldering pads allow for a secure connection. The red board with a range of 15 m is suitable for repairing old radios, building custom speakers, and other DIY projects.

Price incl. VAT €8.69