mysterious tools

[Nounou99]

hello everyone
I am not an electronics engineer, I found this tool on the ground, and I wonder if someone can explain to me what it is for

 

[bertus]

Hello,

That is quite a mess.
Most parts on the PCB are broken:


It looks like the remainings of an USB charger.

Bertus

 

[ivak245]

It looks like a one-use low voltage DC smoke generator.