I received this article this morning. I can not use it because the instructions announced as "in French" does not exist. The red light should be on the collar of the case does not exist either. I did not want to use a product that does not conform to what is advertised on the seller's site. After contact with the seller, it is found that the lights appear by transparency through the case. The brightness is low and it is not possible to see when the dog walks. The sound, which is relatively low, can not locate the dog when he is in the garden. But for education is sufficient and progressive settings are a plus. However, this is a product that seems a little fragile and its implementation requires attention.
