In addition this device is very good,
After it is connected via Bluetooth (this read the previous reviews or the manual) it works flawlessly.
The quality and the sound is pretty fed up.
However, I need to connect my speakers to thank the fit of the earphones. Unfortunately, they do not fit everyone.
For me it is not a problem with my friend the other hand, there is no chance because her the earphones are clearly too large.
If they match, however they sit well and are therefore well suited for the sport.