Tested with 20V lithium battery Easy to connect speakers. So far, so good. DC power requires a barrel connector with no alternative connections. I donated a string from an old wall wart. Bluetooth was easy. Without a voice. Beep beep beep. Noisy. The sound quality is TERRIBLE. With no audio input, it seems to go into standby mode with an unbearable hiss. It stops when the sound starts. Unfortunately, don't expect any bass with this sound. I try another board and call it a learning experience.
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