【100% Original】Welans ZK-AS21/XY-S350H 220WX2+350W 5.1 Bluetooth Digital Power Amplifier Board Module 2.1 Channel TPA3251 High and Low Tone Subwoofer AS21 Audio Decoder Board Mechanical Switch

Modul Falsafah Dan Isu Semasa: Kk-as21 bluetooth audio amplifier board adopts tpa3254 digital amplifier module. Bluetooth Speaker Motherboard: Jk-as21 bluetooth speaker board is suitable for most bluetooth speakers. Ats Automatic Transfer Switch: No delay, no vibration, no signal input, very convenient and practical. Digital Led Display Board: Sturdy and durable, with low noise and anti-interference. Treadmill Control Board: The amplifier board is very smooth, and it is very easy to control treadmill. ZK-AS21 Bluetooth Power Amplifier Module selling point: Wide range of applications. The appearance is simple and beautiful. APP has comprehensive functions. Real stepless tuning, not digital multi-stage grading adjustment. The mechanical switch can be turned off with one turn, no need to wait for a long time, which is convenient and fast. Maximum Power Per Channel: Above 200W. Channels: 2 2.0). Model Number: Amplifier. Description of ZK-AS21 Bluetooth Power Amplifier Module. Product selli