I unpack the pretty box and I connect the device with the charger for my sony xperia U smartphone (Identical USB cable supplied). Meanwhile, I read the little manual. The explanations are clear with pictures. And here I am taken of a doubt! Is my old Android 2.3 is compatible with the Bluetooth 3.0 standard? The red LED goes out, the unit is loaded. I support 5 sec ON button the blue LED flashes. I turn bluetooth on my smartphone that immediately recognizes the codeblue 08 OUF! Connect. The LED turns solid blue. Playerpro quickly and instantly, the music comes out of the speakers. It is very simple and the sound is powerful 2x2W RMS. It is also possible to pair the device NFC if your smartphone is equipped with this function. The unit has a nice look, and surprise, it is soft and pleasant to the touch. We can respond when called (mic). It's convenient to contact children via Skype sound is very clear. One can also use it in a car with a smartphone equipped with GPS. As dustproof, sand and splash I'll take it on the beach to the next vacation. I might as well leave my phone safe without earphones and with a very good sound quality. With a 3.5mm cable (not supplied) is also little use bluetooth. Battery capacity 1000 mAh Battery life = 8 Hrs The unit measures 12 cm and weighs 150 grams.