Is it possible to reprogram (details inside) one Chinese electronic device?

Question

Electronics

There is a Chinese device. A small Chinese silicone drum substitute, W758 USB Drum Kit is called.

Everything is fine, but there is one minus. The sound leaves much to be desired. Three different playing styles, and each one has separate sounds that seem to be recorded on a microphone without any noise removal, which creates an unpleasant rustling.
It is only powered by USB, the computer does not detect it as a device at all, there was no disk included. The sound goes only directly to the speakers or headphones.
Question: Is it possible to reprogram a device of this kind? In particular, to replace the resources (namely, sounds) of the program itself, that is, in principle, the programming itself is almost not needed as such? Maybe you can show a non-computer-readable device via USB somehow to the computer itself, assign it as some kind of additional keyboard, and assign its own action to each button?
If it is impossible to reprogram or do something similar, then thanks for the answer. I hope this answer is clarified.
If all the same, something is possible, then in which direction to dig? Maybe there is some useful software? And can this, for example, simply lead to the "death" of the device?

Answer 1

I highly doubt that something can be reprogrammed in a cheap Chinese toy. You will not find ready-made firmware for such devices, the chip will most likely be protected from reading, which gives a 99% chance of getting a brick out of it when flashing it.
here is an option if you only change the brains to something arduino or stm-like, connect pads to it and output it to the computer as a midi signal, and then process it with a sampler.

Answer 2

You would show photos of boards in boxes.