The buttons are clearly marked and the volume / track functions are separated, which is much more convenient than the combined buttons often encountered. I also like the mechanical power button is simple and effective. The enclosure is supplied with a small cloth bag.
This enclosure is also able to serve as an adapter "hands free" practice when working at home.
The pairing is very easy and quick, like all modern Bluetooth products; Integrated NFC allows pairing and connection through casual contact. It works well on some phones (Sony Xperia Z) and much less with others (Samsung Galaxy SIII - I have not had the opportunity to try with newer Android phones, I'm sure it's working much better)
Excellent product.
[Sample provided in exchange for an honest and impartial comment]