XV500

Soundcore x600 or Sony xv500 Bogasing G4 I have all three , all of them have low latency over Bluetooth.

Xv500 sounds way better plugged in .

Sony xv500. Love the look. Love the sound. Loved the cost. Love the battery life. Love everything about it.

Oh I know, but my xv500 gives me everything I need. 290 on sale and worth it.

If yo want just 1 speaker, for 300 i would get a sony xv500. If stereo is important, get a 2 speaker system (or 2.1). You could get 2 minirigs, if you dont mind cabled connection. You could later add a minirig subwoofer. I dont know about that edifier.

Sony Ult 7 is much bigger than bose max. That means its also louder, more and deeper bass, plus it has extras like mic in, lights. The only reason to choose the bose is the much smaller size. It good at producing a lot sound out of a very compact package, but apart from size, everything speaks for the Sony here. If size/weight dont really matter, for the pricevof the ult7 i would rather go for the sony xv500 or jbl120. The sound of those is much more balanced, rich and consistent over different volumes. But these weigh around 11kg (sony ult 6, bose max 3).

Sony xv500. ist a little bigger than you thought maybe, but its only twice the price of a charge, and it has many dedicated karaoke functions, like 2 mic ins, tune change, echo effects etc, long battery life (25h), some lights also other good alternatives are JBL encore (2), Sony Ult 7

Sony xv500 - great pleasing sound, and good price for what it delivers. It is somewhat tall enough, so that it can stand on the ground an dstill soudn good. It is loud enough, but without being too penetrant for other people in the park (if you have some distance to other groups of people)-