This remote solves all my problems:
- Play / Pause
- Next song / previous
- Volume
- Excellent sound quality, I have not seen any difference in quality between the headset connected to the phone or via the kit.
Possibility to change the helmet, one supplied is the same as that of the Nokia Lumia 930 and I opted for a Sennheiser MM70S. The case features a micro but I have not tested, I use a headset.
Autonomy announced 6am reading must be real, I've spent about 4 hours at least read one day and I still had battery (2h announced), if you have a Windows Phone 8.1 you can go to the "Hub of the devices" are to know battery level. In addition it recharges on a micro-USB port 20 to 30 minutes depending on the level of the battery which is really great.
The range is approximately 10m to view (no obstacles), it reduces rapidly if there are obstacles (2-3m behind a cinderblock wall), but that's enough for her phone in a bag or pocket a jacket.
A priori compatible with all "Bluetooth 4" phones.
The NFC is only used to simply pair the kit to the phone.
Really great!