I bought a pair of Sordin muffs in October 2024. They have been problematic since new. They will work one day and then the next, they won't turn on. I have to remove the batteries and re-install them. Then they work, until they don't. It's an electrical contact problem. Cleaning the contacts and using a little deoxit cures the problem . . . until it doesn't.
These pricey muffs come with a 5 year warranty. Good luck on that. Sordin is in Sweden. They say within 5 years I have to deal with the seller. The seller is a 3rd party on Amazon. They say I have to send them to Sordin. Stalemate. My credit card company won't dispute warranty issues, only non-delivery issues. Amazon claims the return period is expired. I don't see any other way to resolve this. I like the muffs - when they work. But the lack of reliability is driving me nuts.