Despite the setbacks Delivery (3 weeks of waiting, thank you customs, Europe what is it?) This necklace was expected. I have a dog very large, 75 cm to 35 kg, which is 7 months. The leash became an ordeal and I had a few accidents (falls) because of him. This necklace comes to calm radical way, it obeys a real pleasure, I call it, otherwise he runs bam, a bit of a vibrator and if he resists, bam, hit a small current (dosed at 50 100). A real pleasure to walk around, he sees a cat, before it was absolute horror, there it no longer flinch, why this band of C ... by customs officers kept the package more than 3 weeks ??? The company that sells this necklace is nice, she sent me the manual in French by email. Thank you