Shan Yu power amplifier DC 65438+220V Bluetooth power amplifier, fixed resistance Bluetooth, subwoofer, superior performance, good external power amplifier, good experience, good power matching, good stability and smooth sound quality. Qisheng enjoys the honor of being a well-known trademark in China, and is the first batch of enterprises authorized by China Electronic Audio Industry Association to use the A mark. Audio is one of the main products of strange sounds, and its function is very powerful.