but works somewhat dull (weak highs) and improper delivery (see text)

Unfortunately, the delivery was not in the original packaging, the box was already opened by 1. 2. a black model and. The device acts as if it were a long time located in a dirty warehouse. Unfortunately, it was hard to come by even when cleaning absolutely white. The already partially charged battery lies close to an earlier use. Anyway the thing is working properly. The heights seem weak, but the bass is full and the part is sufficiently loud.