Good build quality. Too chunky to stick in a pocket, but fine for a rucksack.
I bought it to provide better sound when watching movies on an iPad Air, which it does quite well.
However, when using it in Bluetooth mode the movie sound is about half a second late in reaching the speakers...which means voices etc are noticably out of sync...I suspect most BT speakers do that. So rather than use BT I connect the iPad to the speaker with a 3.5mm jack cable, and that works fine.
It's a shame there isn't a setting/app on the iPad that can delay the movie picture by half a second to allow BT speakers to keep in sync...or is there?...anyone have any thoughts on that?
Playing music files won't be noticably affected by the BT delay.
The Sony has much better sound than the likes of the more portable Music Angel Friendz and the XMI MiniAngle (I've got both).
Overall a decent effort by Sony.