BB41 Bluetooth Amplifier Module – Type-C Powered Wireless HI-FI Audio Decoder Board with FM, USB, AUX & SD Card for DIY Speakers

• Modern Type-C Interface: Unlike older modules, the BB41 features a Type-C port for stable power input and fast charging compatibility.
• Multi-Source Input: Supports Wireless Bluetooth, USB Drive, Micro SD Card, and AUX for maximum versatility.
• High-Fidelity Audio: Integrated HI-FI decoder chip ensures crystal clear sound with minimal distortion for your DIY speaker projects.
• Complete Controls: Dedicated on-board tactile buttons for PREV/Volume Down, PLAY/PAUSE, and NEXT/Volume Up for easy navigation.
• Compact & Durable Design: Built on a high-quality red PCB with clearly labeled soldering points (GND, VCC, L+/L-, B+/B-) for easy installation.
• Built-in FM Radio & Mic: Includes an FM antenna pad and an integrated microphone for hands-free Bluetooth calling.

Detailed Technical Specifications

Why Choose BB41 over Others?

The BB41 module stands out due to its Type-C connectivity, which is now the industry standard, making it compatible with your existing mobile chargers and cables. The board layout is optimized for heat dissipation with high-quality capacitors (FOLLON 10V series) that ensure long-lasting durability even at high volumes.

How to Power & Connect?

1. Power: Connect a 3.7V Li-ion battery to the B+ and B- terminals or plug in a Type-C cable.
2. Speakers: Solder your 4-ohm or 8-ohm speakers to the L+/L- output points.
3. Antenna: For FM mode, solder a small wire to the FM-ANT pad for better reception.

Note: To power this module, we recommend using a high-quality 3.7V 18650 Lithium-ion Battery for long-lasting backup and stable performance.