My wife and I, who have a Labrador Retriever and love the breed, decided we'd like to foster rescued Labs. We received our first foster back in July of 2014, who the rescue organization named Lola. Lola is an older Lab mix who seems to have had a hard life. She was picked up from a busy highway, by a wonderful woman and her daughter. They stopped traffic and put the dog, who was on the brink of starvation in their car. Lola came to us timid, fearful and highly anxious. After several months of much needed love, food and exercise Lola has become a wonderful addition to our pack. She is happy and healthy, but has severe separation anxiety. It seemed whenever we left the house she tried to find a way out and find us. She once was so desperate that she jumped through a window 12 ft and landed, unharmed. After that I decided to purchase the Tagg, and I'm glad I did. A few months later, we left Lola with a pet sitter while we went on vacation. 3 hours after we left, Lola escaped! The pet sitter frantically called us and I immediately located her on my phone. She was found and safely brought home. Tagg saved the day and probably Lola's life! This is a must have product for dogs that are known escape artists. We never take it off of her (only for recharging and bath time) and it gives us a HUGE peace of mind! Thank you Tagg!