Yes, I do, Bill. 32 GB is the max micro SD or USB thumb drive memory size...which is a lot of songs and/or audio books, a typical spoken paperback audio book taking up 600~800 mb or less and a whole album (like Roy Orbison's Greatest Hits for example) taking up around 100 kb. If you've followed the entire "bluetooth speaker" parade, you already know there have been some liberties taken (an understatement on my part). I don't know why but in this case I think they play in our favor. In a literal world, a bluetooth speaker is an amplifier and loudspeaker that's paired with a smartphone (one or many) that has wireless connectivity. It can also be connected to tablet devices, iPods or computers. But this one has a bluetooth antenna built in to the circuitry (doesn't actually take much given the distance limitation of that ability), an FM antenna connection, an FM receiver/tuner, amplifier, right and left speaker outputs, a microphone, an MP3/WMA/WAV decoder and player, infrared ability (with an accompanying remote control device), sound equalizer, double decoding, power off memory (so you will return to the same song or chapter when you re-power it), digital display, support for pause/single loop play/replay all, support for polarity protection (won't burn out if wired backwards) and possibly some other abilities. Mandarin being a language I really didn't grow up with. Interestingly some of these I've bought from China have been made using German, US and Japanese discrete parts.
So the speakers in this case are wired as they would be normally (a right output + and a left output + and negative connections for each channel). If this device has the ability to send output to a typical bluetooth speaker (as one might use on a patio) I don't know...I don't own one and so I haven't tried it.
I think anyone will be able to connect it...red is positive and black is negative.
Let me take you on a tour of one side of the circuit board, Bill...
The red pointer is the power connection and the two white plugs to the right are the speaker connections. The blue pointer is the micro sd card socket and the USB socket (and microphone) sits on the top side. The two lime green pointers are the amplifier chips (right/left) and there's another over to the left (no pointer) which is a precise step-down DC-DC converter capable of handling between 5v dc and up to 32v dc. The white one points to a bluetooth 5.0 audio receiver chip. The yellow pointer shows one side of the FM antenna (the other connection naturally being ground). And the squash colored pointer shows the bluetooth antenna imprinted on the board. There's a 24 mhz crystal oscillator there also and an aux socket for headphones. On the other side are a couple of electrolytic capacitors, the I/R receiver, the display "tube" and that's about it. Hope this helps...if questions, please ask.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
