The pairing is perfectly simple. Simply accepting button as long as hold green-red until the light flashes alternately. Then let search only on your phone for new devices. Is recognized immediately! Pairing and ready.
The volume is enormous. WHILE other devices are usually limited in the volume, you can turn up to the right tinnitus here.
Speech intelligibility is clear and understandable with the interlocutor.
Shortly what to reach:
I believe that the specified 25 meters exaggerated. Even outdoors I am only 15 meters (Come with a good wind :-).
Normally, however, you have to be smart, too on man or the woman.
But even the most expensive parts of eg Sennheiser have greater reach.
So the unit of MPOW here is absolutely a good average.
I forgive no less than 4 stars because the value for money is more than fine here.