It's possible that I just had bad luck with the audio cable and connections, but when I use only one cable on the tracks, there is a notable change in the overall sound picture from channel to channel, and one channel is nearly inaudible as a result (it is especially noticeable on the Beatles tracks). A second connection was examined and found to send absolutely nothing at all to the speaker. Such phonograms have not been tested for by Bluetooth as of yet. A powerful and melodious power-on signal, as well as service messages such as "line in get out a little more" (as if I myself don't see that the cable is inserted), would be beneficial. After 8 months of operation, the following was added: daily operation for at least 1-2 hours. Frequently longer. The battery was not in its proper position. It was discovered that sound from a laptop might be conveyed through a USB connection. It was discovered when the column worked while connected to the battery and the AUX cable (the laptop is unable to connect to it via Bluetooth). I then seated myself and attached his AUX cable to his USB port so that it could charge. It was also discovered that when the speaker was connected with a cable (both AUX and USB), the buttons on the speaker could not be used to regulate the volume of the speaker.
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