The headset is within a few minutes via BT or NFC (which can not my iPhone, so I could not test NFC) coupled and you have neither a guide nor study to make any additional settings - simply unclip his ear and it works. The comfort I personally like best with the so-called "Eargel". This headset is simply inserted into the ear and sometimes forget there ... The carrying handle is probably safer in strong winds or if you sweat in summer, but suppressed after an hour a little, but which should be earmold depends. The communication quality on both sides very well so far, I have every interlocutor properly understood and the "opposite" was no negative feedback. Whether the automatic volume adjustment of whiteness is the last conclusion remains to be seen only; on or adjust can not be in any event! The test with a noisy environment is still pending. If the results are negative, I sign up again.