Bluetooth 5.0 Amplifier Module 2x40W — The Ultimate All-in-One Audio Solution
Have a pair of passive speakers gathering dust? Looking to modernise an older audio setup without replacing the entire system? This compact Bluetooth 5.0 module features a built-in 2x40W stereo amplifier, combining wireless streaming, FM radio, high-quality FLAC/MP3 playback, and audio recording in a unit smaller than a deck of cards.
Note: The 2x40W rating refers to peak power. Actual RMS output will vary based on your power supply voltage and the impedance of your connected speakers.
Why choose this module? (Key Features):
- Integrated 2x40W Stereo Amplifier — Connect your passive speakers directly; no need for an external amplifier.
- Bluetooth 5.0 with Hands-Free — Enjoy a stable connection up to 10 metres, with long-press functionality to answer calls.
- 5-in-1 Audio Sources — Switch seamlessly between Bluetooth, FM Radio (87.5–108 MHz), TF card, USB, and AUX input.
- Native FLAC & APE Playback — Experience lossless audio quality directly from your USB drive or memory card.
- Direct Audio Recording — Record FM, AUX, or Bluetooth audio directly onto a TF card or USB stick without needing a PC.
- Universal Power Input (5V–20V) — Highly versatile; works with power banks, 12V car systems, or standard mains adapters.
- Auto-Memory Function — Remembers your last volume, audio source, and FM frequency settings after power-off.
- IR Remote Control Included — Manage your audio from up to 10 metres away without leaving your seat.
Performance and Specifications
The Bluetooth 5.0 chipset ensures a seamless, reliable connection. The dual-channel amplifier delivers 2x40W peak power with ≤0.2% total harmonic distortion and a signal-to-noise ratio of ≥70dB, providing crisp, clear sound for your home or vehicle. With stereo separation of ≥45dB, you get a distinct, immersive soundstage.
| Parameter | Specification |
|---|---|
| Bluetooth Version | 5.0 |
| Amplifier Power | 2x40W (Peak) |
| Supply Voltage | 5V – 20V DC, 1A – 3A |
| Idle Current | ≤ 150mA |
| USB Charging Output | max. 2A |
| Signal-to-Noise Ratio | ≥ 70dB |
| Total Harmonic Distortion | ≤ 0.2% |
| Stereo Separation | ≥ 45dB |
| Frequency Response | 80Hz – 15kHz |
| FM Radio Range | 87.5 – 108 MHz |
| FM Auto-Scan Sensitivity | 25 – 30dB |
| Supported Audio Formats | MP3 (32–320 kbps), WMA, WAV, FLAC, APE |
| Storage Media | TF Card (microSD), USB Flash Drive |
| Display | Large LED Digital Display |
| Remote Range | ~10 metres |
| Storage Temperature | -20°C – +50°C |
| Dimensions | 75 x 50 x 21 mm |
Setup and Usage Guide
- Selecting Audio Source: Press the MODE button to cycle through: Bluetooth → FM Radio → TF Card → USB → AUX.
- Bluetooth Pairing: The module enters pairing mode automatically upon first use. Simply select the device from your phone’s Bluetooth menu.
- Hands-Free Calling: During an incoming call, long-press the Play/Pause button to answer or hang up.
- FM Auto-Scan: In FM mode, press the AUTO button to automatically scan and save all available stations in the 87.5–108 MHz range.
- Audio Recording: Insert a TF card or USB stick, select your source (FM, AUX, or Bluetooth), and activate the recording function.
- Volume Control: Adjust levels using the VOL+ and VOL- buttons on the unit or the remote.
- Memory Settings: The module automatically saves your last source, volume, and FM frequency, so it is ready to go as soon as you power it back on.
Package Contents
- 1x Bluetooth 5.0 Audio Module (2x40W)
- 1x IR Remote Control
- 1x 2-Pin Power Cable
- 1x 2-Pin Audio Cable
Frequently Asked Questions
Can I connect speakers directly to the module?
Yes. The 2x40W stereo amplifier is built-in, so you can connect your passive speakers directly to the output terminals.
What power supply do you recommend for maximum output?
We recommend 12V–20V DC with at least 2–3A. Using a 5V power bank will work for desktop-level volume, but will not provide the power required for larger rooms.
Is this compatible with 12V car systems?
Yes, it is fully compatible with 12V vehicle power. It is an excellent way to add Bluetooth and FM functionality to an older car audio system.
What is the maximum microSD card capacity?
While there is no strict limit, cards up to 32GB formatted in FAT32 are confirmed to work perfectly. Larger capacities may require testing.
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