Finally Niaoqianghuanpao, not that want to do much good, after all, lack of capacity is limited, just having fun, enjoy the process Bale.

The plate element effect Bluetooth amplifier with DC power supply is 2.1, and finally no current sound adapter 24v3A, relatively stable, the latter through the aperture to directly cut reconnect Wan sound speaker 3 inch, cost can be , dozens of pieces of horn has to be all right, loud speakers to order online, the compression plate affixed to the wood grain, also with a horn cover, horn cover on false feeling tall did not use