Experience powerful and high-fidelity audio performance with this advanced Bluetooth 5.2 amplifier board, featuring dual TPA3221 amplifier chips for exceptional efficiency, low power consumption, and superior sound quality. Designed for versatile audio input options including Bluetooth, AUX, U Disk, and USB sound card, this amplifier supports multiple audio decoding formats such as AAC, SBC, WAV, FLAC, APE, and MP3, delivering rich and clear sound across various sources. Key Features: · Dual TPA3221 Amplifier Chips: Provides high efficiency and low power consumption while delivering fine sound quality with comprehensive protection features for reliable operation. · Bluetooth 5.2 Connectivity: Enables quick and smooth wireless connection with enhanced stability and low latency, ensuring seamless audio streaming. · Multiple Audio Inputs: Supports Bluetooth, AUX, U Disk, and USB sound card inputs, offering flexible options to connect your devices. · Wide Audio Format Support: Compatible with popular audio decoding formats including AAC, SBC, WAV, FLAC, APE, and MP3 for versatile playback. · Customizable Sound Effects: Adjust and personalize sound settings easily through your mobile phone for an optimized listening experience. · High Output Power:  - Left and Right Channel Output: Ranges from 10W+10W at 8Ω/12VDC up to 100W+100W at 4Ω/30VDC  - Subwoofer Output: Delivers powerful bass with outputs up to 200W at 2Ω/30VDC · Durable Build Quality: Crafted from fine quality materials for long lifespan and reliable performance. · Optional Configurations: Available without case, with case, or with line to suit different installation needs. Specifications: · Bluetooth Version: 5.2 · Power Supply: DC 12-30V / 5A or above · Audio Input: Bluetooth, AUX, U Disk, USB Sound Card · Bluetooth Audio Decoding: AAC, SBC · U Disk Audio Decoding: WAV, FLAC, APE, MP3 · Output Power (Left & Right Channel):  - 10W+10W @ 8Ω/12VDC  - 20W+20W @ 4Ω/12VDC  - 35W+35W @ 8Ω/24VDC  - 70W+70W @ 4Ω/24VDC  - 60W+60W @ 8Ω/30VDC  - 100W+100W @ 4Ω/30VDC · Subwoofer Output Power:  - 10W @ 8Ω/12VDC  - 20W @ 4Ω/12VDC  - 35W @ 8Ω/24VDC  - 70W @ 4Ω/24VDC  - 60W @ 8Ω/30VDC  - 100W @ 4Ω/30VDC  - 200W @ 2Ω/30VDC · Dimensions (Without Case): 111 x 100 x 23 mm (4.4 x 3.9 x 0.9 in) · Dimensions (With Case): 112 x 102 x 28 mm (4.4 x 4.0 x 1.1 in) · Package Size: 150 x 132 x 53 mm (5.9 x 5.2 x 2.1 in) · Package Weight:  - Without Case: 255g (9.0 oz)  - With Case: 345g (12.2 oz)  - With Line: 295g (10.4 oz) This Bluetooth 5.2 amplifier board combines powerful audio output, versatile connectivity, and customizable sound settings in a compact design, making it an ideal solution for upgrading your audio systems with clear, dynamic sound and reliable performance.