This Bluetooth amplifier module is designed for small-space applications, enabling devices to add Bluetooth functionality efficiently. It features a mono 5W Class D power output, ideal for driving 3W-5W small speakers. The module is perfect for compact electronic setups like car navigation systems or other small devices.

Key Features:

1. Bluetooth Input: Supports wireless lossless audio streaming, ensuring high-quality sound.

2. 5W Mono Output: Powers small speakers (3W-5W), providing direct drive capability.

3. Power Supply: Operates on DC 3.7V-5V. Exceeding 5V may damage the Bluetooth chip.

4. Compact Design: Perfect for limited-space setups.

5. Precautions:

   • The output cannot act as a current source for other devices.

   • Ensure correct polarity during installation to avoid short circuits that may damage the amplifier chip.

6. Additional Setup: Includes a 3.7V lithium battery setup but requires an external charging protection plate for recharging.

Applications:

• Compact Bluetooth speakers.

• Car navigation systems with added Bluetooth functionality.

• Digital audio projects requiring small speaker setups.