To function there is to report anything special, it works perfectly. With pillion understanding is perfect, no (self) sounds good Audio quality, certainly, depending on helmet (wind noise) but different. Coupling, telephoning and Navi (LG Mobile) also funzt very well.
Operation with gloves bit fiddly, but goes. I think in any other device, it is exactly the same.
A huge plus is the BOTH SUPPLIED (ALSO TWO !!!) CHARGERS. A real advantage to many other sets.
Delivery / packaging ok. Sure thing, Kaufempfelung. Of course you have to assemble can :-)