We've covered quite a few Bluetooth speakers here at AP over the last year or so – but we've never seen one quite like the BlackDiamond3 from Acase ($100, Amazon). Simply put, the BlackDiamond3 (known from here forward as the BD3) adds a pleasing visual element to your tunes by way of embedded LED lighting and multiple "diamond edges" that refract the over 16,000 colors to create a beautiful and ambient light show. In other words, it's really freakin' pretty.
As pretty as it is, though, it's not perfect. But that's OK, you may still want it anyway.