It works correctly and doesn't seem to be bad quality what I haven't tested is distance but it is effective and has three modes of operation vibration cramp and beep the first two adjustable from 0 to

Great item, it was missing the box or packaging, but it all comes complete. They work well and correctly, special for pets. It illuminates in operation. All right, thank you, oki.

The order arrived in Spain in 8 days, the seller sent me a wrong color but they responded very quickly to fix the problem. I am very satisfied with the purchase.

In the absence of testing everything perfect and relatively fast shipping instead of three days it takes seven to get from there the four stars

Everything matches the announcement, I have not tested on 800m but 200m ok. Packing and delivery time OK. I recommend sellers.