There are a lot of fakes, almost indistinguishable from the original, but the sound is much worse. So if you bought cheaper than in the big chains, it's definitely money lost. Battery inside 3300ma 7.2v 24w. Therefore, it is better not to use a 3 ampere charger all the time. Best of all, I went charging at 500ma. Almost no charge-discharge switching. Charging with a large current is bad for battery life. The speaker is best placed 10 - 15 cm from the wall, the bass and the effect of spatial sound increase sharply.
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