Certainly happy @ this price.
I did 3 hours acoustic r&r guitar & microphone for an afternoon birthday party of 35 people in a garden marquee.
At 45 Watts, this little "all in one" really punches out the sound (on a speaker stand), the mic anounced birthday speeches were well clear and plenty loud. After that, I pushed in an SD mp3 card for the rest of the afternoon.
I really like the mic preamp/line switches by the XLR/jack inputs, that's real connectability and gives me much more control of my sound and the instrument/mic I use.
The best part for me is the usb/SD player, certainly loud enough, with "pre gain and play back eq" built into the mp3 deck plus another mp3 deck gain control & 5 band graphic eq + main volume. Careful adjustment of the controls can give some powerful and clean sounding results.
No problems with Bluetooth either, it still connects from down the garden.
Battery just kept on going, but I didn't "time it" so I'd say 5 hours easy.
I only got this bp112a with thoughts of trying it then maybe return it, thinking, at this price, it would be weak and "iffy", but I am certainly turned round on that opinion.
This machine has really shocked me into using it for my guitar, looper & vocals at smaller venues.
The thomann brand, as I find, is certainly reliable too, plus the guys @ thomann are very helpful, any problems are very soon sorted.
Great machine smaller venues.