Features 1. [Stereophonic Sound]: The digital power amplifier board features dual-channel stereo sound, delivering high-quality audio performance and an immersive listening experience. 2. [Volume Control]: The stereo amplifier board allows easy volume adjustment via the built-in potentiometer and switch, enabling convenient and precise control, ideal for DIY speaker projects. 3. [Stable Power Supply]: The amplifier board uses a copper DC connector designed to handle high current with minimal heat, and includes a 470uf 35V capacitor to enhance power storage and heat dissipation. 4. [Easy Operation]: The amplifier board module comes with a compatible DC cable, allowing simple connection to a power source without requiring a DC adapter or battery. 5. [Bluetooth 5.0]: Equipped with Bluetooth version 5.0, the digital amplifier board provides stable and efficient wireless connectivity with a transmission range of up to approximately 15m (49.2ft). Specifications Item Type: Digital Power Amplifier Board Material: PCB Operating Voltage: 5-24V Compatible Speaker Power: 30W-200W Number of Channels: Left and Right Dual Channels Bluetooth Version: 5.0 Wireless Range: Approx. 15m (49.2ft) Protection Features: Self-recovery overheat protection, self-recovery short circuit protection Package List 1 x Digital Power Amplifier Board 1 x Connection Cable Note: The digital amplifier board is not recommended for use with a 24V battery power supply, as it may cause overvoltage damage. If using a metal enclosure, ensure the Bluetooth antenna is extended outside.