I got a bad one, same as someone else. I wasn't allowed to get a replacement, only a refund, through Amazon. And I'm not sure if it's just a few isolated devices, or a shiitload! IMO, it's a possibility that it's just something that occurs with one of these particular models once in a while. But, considering the fact I'm not the only bad review on Amazon, the odds are too negative to chance it.
Does an un-rebranded FiiO E7 have a warranty on it? I don't think so,...Pyle didn't provide a warranty. I'd have a replacement in my hands if they did. Amazon gave me a refund, but after 30 days I'd be on my own. Would someone like to take a chance? Up to them if they do,...my FiiO E11 is more reliable. IMO, YMMV.