The operation is also gratifying simply failed. All controls are built into the right speaker, there the battery is charged, there but you can also adjust the volume and connect the devices via Bluetooth or with the same button the earphones and off. Both the phone calls and the music was coming in a surprisingly good quality of the earphones. Particularly in view of the low price, I am very pleasantly surprised.
Also nice: The headphones sit despite or because of their low weight, good in the ears (the right size silicone cushions provided).
I am very pleased with the surprisingly small, well-fitting and well-sounding Bluetooth headphones. It really is a price / performance hit. Thus, from me five stars and a strong buy recommendation!