Just received this cute (pink) Bluetooth speaker, looked as cute as the display.
I connected it to my blackberry, to my galaxy tab and to my laptops - corrections and switching was so simple and easy :)
Quality of sound I would say is 'decent', with average bass effect.
Using your players equaliser, you can tweak it a bit more. The volume (loudness) is fine, enough for a party in your bedroom :).
Hey this is no "Bose" sound system, but at under 4000 JPY, this Bluetooth speaker is simply fantastic and is completely value for money and I love it!