- Good sound quality. Excellent long-lasting sound at the same level, regardless of the charge. Holds a charge for a long time, enough for a couple of evenings of many hours of disco at full volume. Easily tuned to another sound source. Not hard to carry in a backpack.
- Not found. If you quibble, then: There is not enough indication of the level of the set volume. Only when it reaches the maximum, does it emit a bellim. Empirically established that the range of clicks from zero to maximum - 30 times.