4.1 MP3 WAV Decoding Board Speaker Amplifier Audio Receiver Module
$5.001 pcs
Audio Receiver Module combines Bluetooth wireless reception, audio decoding, and signal amplification into one unit.
| Dimensions | 45 × 37 mm |
|---|---|
| Brand |
easyelecmodule |
364 in stock
The Car Audio 4.1 MP3 WAV Decoding Board is a compact audio module. It’s not just a single chip, but an integrated product module that combines Bluetooth wireless communication, audio decoding, and power amplification. Its core consists of three parts:
- Bluetooth 4.1 communication chip (responsible for receiving wireless audio signals from devices like phones and tablets).
- MP3/WAV decoding chip (converts digital audio files into analog audio signals).
- Audio amplification circuit (boosts the power of the analog signal to drive speakers).
It also comes with peripheral components like a USB port, TF card slot, and audio input/output interfaces, offering a “plug-and-play” experience.
4.1 MP3 WAV Decoding Board Interface Specifications
| Interface | Description |
|---|---|
| Power Interface | Standard Micro USB port for 5V power input. |
| 3.7-5V Pads | Soldering pads for external 3.7V to 5V power input (for custom installations). |
| USB Port | Supports playing MP3/WAV/APE files from USB drives. Requires FAT16/FAT32 format. |
| TF Card Slot | Supports playing MP3/WAV/APE files from TF (MicroSD) cards. Requires FAT16/FAT32 format. |
| LED Indicator | Bluetooth mode: Blue light solid. Music playing: Blue light blinking. |
| 3.5mm Stereo Output | Standard 3.5mm jack for stereo audio output. Can connect to headphones, amplifiers, etc. |
4.1 MP3 WAV Decoding Board Buttons and Their Functions
| BUTTON | FUNCTION DESCRIPTION |
|---|---|
| RPT | Short press to switch between single track and loop play. |
| PREV/V- | Short press to play the previous track; long press to decrease volume. |
| NEXT/V+ | Short press to play the next track; long press to increase volume. |
| P/P | Short press to play/pause. |
| MODE | Short press to switch among TF card, U disk, and Bluetooth modes. |
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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