The Syren's novel approach to stereo speaker design has one speaker pointed up while the other fires down and is reflected for 360 degree sound. This unusual design might not let it fit in some cars' cup holders, so check first. Of course, you don't have to use the Syren in a car, as it will be right at home on a bookshelf or desk.
For power, plug in the microUSB cable to your own USB car charger (not provided) or rely on the built-in five-hour battery. The button placement is a bit awkward, as they are hidden away in the back of the unit, so that's something I would have designed differently.
A nice add-on is the voice guidance which makes it easier to connect via Bluetooth by talking you through the process. If we iPhone users can't have NFC, at least we can benefit from this feature. The iLuv Syren is offered in assorted colors including white with gray accents, black, black with blue accents, black with red accents, and black with pink accents.