Hi i have just been fitted with a Oticon spirit zest HA, it,s my first so don't really know what to expect, i have mild hearing loss and have just lost a few frequencies, the Ha has been set by the Audi, it seems ok when im in the office or at home but i work on aircraft and when just the electrics are running(not the engine) my HA hisses quite badly, this seems to be the case when im outside .
can anyone tell me if this is normal or do i need to go back and have it re set ??
Thanks
Ady
can anyone tell me if this is normal or do i need to go back and have it re set ??
Thanks
Ady