Experience powerful and high-fidelity audio performance with this advanced Bluetooth Amplifier Board, equipped with dual TPA3116D2 chips designed for superior sound quality. Supporting a wide DC voltage input range of 9-24V, this amplifier delivers a robust peak output of 100W plus 100W at 1kHz with 21V and 4-ohm speakers, ensuring clear and dynamic sound for your audio needs. Key Features: · Dual HiFi Grade TPA3116D2 Chips: Provides high-quality stereo amplification with excellent sound clarity, efficiency, and low distortion. · Wide Voltage Input Range: Compatible with DC 9-24V power supply, offering flexibility for various power sources. · Multiple Input Methods: Supports Bluetooth 5.1 wireless input, 3.5mm AUX input, and USB input, allowing seamless connectivity with smartphones, tablets, laptops, MP3 players, and other devices. · Enhanced USB Compatibility: Plays various music formats from USB flash drives, including MP3, FLAC, WAV, APE, and more. FLAC playback supports bit rates up to 1500 kbps, while WAV supports sampling rates within 44100Hz. USB drives must be FAT32 formatted with a capacity up to 32GB. · APP Control Support: Easily control input modes, Bluetooth name, and password settings via a dedicated app, providing convenient wireless management. · Indicator Lights & Upgraded DC Socket: Intuitive indicator lights display the current input mode clearly, and the upgraded DC socket ensures a spark-free power connection for enhanced safety and reliability. · Versatile Application: Ideal for DIY audio projects, home audio systems, portable speakers, and other audio amplification needs. Specifications: · Item Type: Bluetooth Amplifier Board · Material: PCB · Power Supply: DC 9-24V · Peak Power Output: 100W + 100W · Amplifier Chips: TPA3116D2 x 2 · Bluetooth Version: 5.1 · Sound Inputs: Bluetooth, AUX (3.5mm), USB Package Includes: · 1 x Bluetooth Amplifier Board This Bluetooth Amplifier Board combines versatile connectivity, powerful output, and user-friendly controls into one compact and reliable solution. Whether streaming wirelessly via Bluetooth, connecting through AUX, or playing music directly from a USB flash drive, this amplifier board enhances your audio experience with rich, detailed sound and convenient operation.