Good battery (better than 20% as announced).
Very good ergonomics (dubiously at the opening but quickly convinced to use).
Very good connectivity (not jumping listening and communication).
Its very well reproduced (this is not the audiophile but that's not the point) and very good microphone (surprisingly seen enough available!).
Cable (flat!) Long, suitable for everyone.
The only (small) problem: insulates from the outside world. It would be yet another positive point for many, for me who uses running or cycling, this is a problematic hair. My solution: adjust the sound and everything is fine.
Very good buy, which is well above its competitors (especially the Amazon price! 30th or 20th coupon).
A 60th (off price), it remains above the other (Always On in off prices).