With these ultra-cheap items, I work on the principle that the specs are fiction, and I buy on the facilities available, then when the item arrives, I make my own measurements and decide whether the performance is good enough for the application. Often they are, sometimes they're not.
For example, I bought a Fosi V1 amplifier, advertised as a 2x50 watt amp. Of course, it's nothing of the sort, as also in this case it was supplied with a power supply that was rated at less than 100 watts. In any event it managed a clean 2x20W into 8 ohms, which for the application was fine.
Ditto many of Behringer's products have, shall we say, rather optimistic specs, but again, if adequate for the job required of them, will be acceptable.
S