Robust, with a very nice design for those who like Homer or DONUTS ...
I particularly enjoyed:
* Original design
* Touch (soft)
* Robustness (I have children a bit abrupt, and despite two recent falls, do not worry)
* The very good sound quality compared to other products that I have had in the past: power but also quality
* Bluetooth simplicity
* Viewing time (a good week listening to music 1-2h per day - about 8 am as advertised)
* Rapid recharging
I regret:
* Quality of the microphone that does not do very well in telephone conversation (that being, considering the price of a smartphone and the price of DONUT, you can not compare) - it is not primarily a radio microphone
* The fact that we have a visual indication only when connecting, not noise
* The inability to change song by pressing a button (move to the next or previous): it is in my opinion the weak point, but offset by the sound quality (in the end it is not necessarily very disabling to change the music from the smartphone).
Listed against a small video that will give you all the facts.
Overall I am very satisfied with the sound quality for everyday, and comparing with other products that have my friends, I can only be very satisfied with the quality. I recommend their eyes closed.