A affordable speaker that I use for small house parties up to 100 people.
It overall works well and it was a good purchase. It packs quite a punch and the Bluetooth playback works flawlessly.
Haven't tried the SD-card or the USB-playback mode, but I don't really need them. If I want it attached with a cord, I use RCA->3.5mm jack to whatever device I'm using.
So overall, a affordable speaker with some smart functions!