Following the recommendation here I purchased a pair of Ety 6's
a few months ago and loved them till now. As usual with all my headphones one ear has dropped out, what am I doing WRONG ??
Why does it happen. In truth the left ear still has some sound but only about 15% of the right ear.
Can this type of problem be fixed or will I have to send them back under warranty??

replace the filter maybe?

Sorry I realise know that I need to change the filters.
I wondered what those supplied tools were for.

glad to be of service. i actually had to replace my left one after only 3 weeks out of the box because i was wearing them while painting a set and i guess pulling it to talk to people got it all clogged up. finicky little things, but definitely worth it. (if you're lucky enough to get good seal like us )

How often do you need to change the filters for Ety phones?
Sound like an additional cost. Someone care to explain?

depends on how you keep them, how you keep your ears, how often you listen to them and where. i've only replaced that one filter actually and i've had them for about 3 or 4 months. (since a little before i joined this place actually) i think some people do it every month or something crazy like that. i think maybe another few months and i'll change them if i don't really notice any sonic changes. my ears are pretty clean though and once they're in i rarely pull them, even to talk to people. (i can read lips well enough to make small talk)