The sound is good, especially considering its price positioning and functional (as well specify other comments, it is not a stereo headset, we agree on that). Potentially headphones are powerful enough to not hear anything in its environment (which is not recommended to run), but adequate noise earphones do not plug so you can hear what is happening around us (if we short urban, I find it significant ... and incidentally I am very disturbed when I workout without hearing me [externally] breathing)
The ergonomics are top: it is comfortable to wear, lightweight, not awkward, it does not hurt the ears, it folds for storage, the buttons are all easily accessible (including small, surprisingly).
The cover that comes with it is reversible and becomes cuff (blue [fluorescent] for the blue model) with a main pocket (which comes in an iPhone 6) and a small pocket behind (for the charging cable and / or 1 or 2 keys).
In terms of features, with an iPhone: support for Siri, play / pause, next pieces back to the beginning of the song, previous song, take / end a call, volume management ... in short, everything that must.
Switching could not be more quick and easy (just think of downloading Plantronics app on your smartphone to update the firmware).
The helmet has a system of oral notifications fine (to indicate the starting, stopping, pairing, battery level), with a rather pleasant voice and an adequate volume.
A detail, but I think it's great: the object is easy to unpack, we do not ruin it hands on the package, no huge plastic that requires large scissors.
Come on, if I had to pick just one (small, this is the case to say) complaint: the power cable (standard USB male to micro usb male) is extremely short ... you might need an extension cord and / or USB / AC adapter.
In short, I do not know anything about this brand, I do not know if all products are equal, but I highly recommend loccurrence.
