Gift from my wife and with a cheaper price than the original (I understood why because after the package had been opened and re-sealed). In short, it does not bother me. If the headset is rather excellent, autonomy is good, the noise is super efficient. Just the touch panel on the right ear which is a bit annoying to use, or so I have not got the hang ... Comfort to see on the long run, I have not yet tried very Bossant long. The iphone app is nice. I also bought a usb-key blutooth (CSL - micro USB V4.0 Bluetooth-adapter) to connect it wirelessly to my computer desktop and it works very well.
