After 1 month of use, it seems to do its job just fine, small, good lock and doesn't scratch at all, it's a shame that it doesn't come with a case or a reminder cable at this cost.

I had 2 falls from my hands on the ground, and the speaker came off. Now I'm looking to see if there is an internal mechanism, good idea this system, but a little adventure and quite expensive

For its price, it is decent....
Just don't have high expectations, it's a basic model with a mediocre sensor and even more mediocre speaker

It does what it says, it's not very sensitive, the battery lasts for one season.
Update: the original battery was good, the next 2 energizer batteries lasted one month each