100% Compatible WindowsPhone 1520!

First time I use a product BOSE. And this is happiness. Already out of the box because we understand why the price is high despite making (again in China). In the box everything is stored by line. The headset comes unfolded. But it ranks easily in the cover provided and there is no more than the size of a CD to 5 cm thick. You can store it in the cover USB cable used to charge the battery of the headset jack and the audio cable that allows to use the headset to a conventional connection. For example on my SanDisk Clip Sport SDMX24-004G-G46K 4 GB MP3 Player Black who has no Bluetooth connection. He can run flat battery. ;-) I tested it on my FLAC player the sound is perfect. Helmet off, without battery, it works on position OFF !! But as a conventional headset. The volume + and - buttons are not working. Only the volume on the player changes the sound output.
On the helmet; two sockets: a microphone jack and a micro-USB; four buttons: +; -; oOo and Bluetooth. everything is easily configurable through these 4 buttons. The helmet is adjusted very easily to the size of my head. It does not slip at all, but is not too tight either. The pads are very comfortable. I turn it on with the Bluetooth button 3 position and I change the language to French, and I hear valid. I turn on the Bluetooth on my Windows-phone 1520 Nokia Lumia 1520 Smartphone Unlocked 4G (Screen: 6 inches - 32 GB - Windows Phone 8) Black and BOSE headset appears in seconds. Validate on the phone and I hear the "connected Windows-phone" helmet! Then everything runs smoothly. I can call as there is an integrated microphone in the right ear, I can win if I am called by pressing the button oOo between the + and - always right ear. The sound is very good. I played Angry Birds is perfect sound I hear even small sounds of water that I could not hear before. I listened to online music, mp3 too. It's very good. I watched a video the sound is very good. Everything of course depends on the sound source. But even wireless sound is excellent.
Bluetooth can "pair" the headset with 8 different devices.
Only flaw for me is that the pads are so stuffed they keep me warm ears. But I have used indoors for the time and given the cool weather of these days I'll perhaps take advantage of this "defect" when I am outside.
I do not often rave but if you can afford it is really an exceptional helmet.