Basically zero. A cheapo voice recorder just won't have the hardware to phone home.
I probably wouldn't bother though. Your phone will probably produce better recordings than a cheap voice recorder. If you care about quality, you're probably better off going with a) a Zoom H1 handheld recorder or b) a Rode SmartLav+ mic connected to your phone.
>>26595 The hardware's cheap and the software even cheaper but unless this requires some odd driver download to get working it's probably not worth worrying about.
>>26595 >>26596 This. If you're buying it in from China on the cheap, then chances are you want to worry less about espionage and more about whether the thing will even work in the first place.
The Chinese direct market is very much polarised into two camps. At one end you have the bargain-bucket zero-fucks manufacturers who put out dirt cheap, low-quality kit. At the other end you have the players that take competition seriously and supply half-decent merchandise at surprisingly good value.
On a side note, one thing you definitely want to avoid buying from China is locks, for reasons entirely unrelated to their quality.
>>26598 Nope, it's worse than that. Nobody has blanks for them.
In the West, there are relatively few manufacturers, and a number of standard profiles for keys, so a locksmith can stock a few hundred varieties of blank and be confident they can cut you a key if the two or three you get with the lock aren't enough.
In China, there are thousands of manufacturers, each with their own profiles, often using a new profile on every new product. While they're all usually happy to supply blanks, no product has enough of the market to be considered essential to a locksmith's arsenal, and so with potentially millions of possible blanks on the go, nobody bothers even trying. Though you do at least get at least half a dozen keys with your lock.
The lock business is weirdly monopolistic. The majority of lock and door hardware brands are owned by the Assa Abloy group, with most of the rest owned by Allegion.