The size of its wings is perfect for me, the earphones are perfectly fixed and can also serve as earplugs for insomniacs as it is isolated from external noises. This is also a my opinion quite dangerous for jogging in the street with these headphones in the ears. So I prefer the book for use in gym / cardio training or public transport. You can get a sound call © là © been pressing the right button.
After a small charge via the micro USB cable supplied, the bluetooth pairing is very simple by just pressing once the button of the right ear. The midrange / bass is very present, much less acute. Everyone can thus choose this earphone according to their musical tastes.
The Case provided is very handy for storing the mini bluetooth headset.