By and large....nope. The only two I haven't tried are SellerKey and DHGate from that list (however, I seem to remember searching DHGate for something....maybe that was for digital photo frames, a different story again - so I may try there again for this one). I wouldn't mind trying SellerKey, since at least I can make contact with lots of suppliers, may be able to buy in smaller quantities, and at least have secure payment. Direct Chinese manufacturers don't seem to accept credit card.
Of 75 direct manufacturers to whom the inquiry has been sent, only 3 have any sort of ipod voice recorder. 2 of those replied, and one of those had a model which was unsuitable for most ipod types that are popular (ie Nano, Mini, Video). Only one had one which could be used with these models. A fourth company used to make the one that I deemed unsuitable and discontinued it because it wasn't that great. But only one company has the really new model (even though there are a few different brands of them being made - somewhere). I have done lots and lots of research to try to find this item; I can't find the 2 main competitors out there (Belkin and I think something called iGriffin), but the company I found makes their own one, and it is priced at $7.95 per unit. They also make the other rather limited one which is $20 per unit which is bulkier.
Very few people are selling them or even making them. I located a couple of articles discussing new products, which is how I came to hear of them, and last time I looked on ebay there were only 2 up for offer, both receiving about 12 bids each. Very hard to find.
If someone on Sellerkey can sell me a unit around the same price range and which works with the same models, with a smaller MOQ, it would be fantastic. As long as it isn't the clunky model that doesn't work with the best selling ipod models - and most of the ones that do sell this one. I'd be happy with a different brand (eg the Belkin or igriffin if I could find a supplier - though I suspect they would be more expensive for the consumer).
I ain't got US$14,000 for 2000 units!!!! (However, they will permit me a smaller sample trial purchase, which I could probably muster)
These are not terribly common items at present - which is why I want to get my hands on them and take a shot at promoting them!