[100% Original] diymore ZK-AS21 220WX2+350W 5.1 Bluetooth Digital Power Amplifier Board Module 2.1 Channel TPA3255 High and Low Tone Subwoofer AS21 Audio Decoder Board Mechanical Switch

diymore. Product selling point. 1: Wide range of applications. 2: The appearance is simple and beautiful. 3: APP has comprehensive functions. 4: Real stepless tuning, not digital multi-stage grading adjustment. 5: The mechanical switch can be turned off with one turn, no need to wait for a long time, which is convenient and fast. Product name: 2.1 channel bluetooth audio power amplifier module Product model: ZK-AS21. Number of channels: 2.1 channels left channel right channel subwoofer). Input method: AUX+Bluetooth+U disk+USB sound card dial button to switch modes and songs). Bluetooth version: 5.1. Power amplifier chip: TPA3251D2. Adapter speakers: left and right channels 30-220W, 3-8 subwoofer 30-350W2-8. Output power: left and right channels 220w subwoofer 350W. Adapter power supply: DC 12~38v, 10A. Protection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protection automatic recovery, no need to restart). Switch mode: mechanical switch no