We love our cat’s Pettracer collar and have been using it for about 1.5 years. It’s lightweight and has never bothered our cat, Luna. The collar gives us real peace of mind knowing her location. On one occasion, she was chased up a tall tree by three large dogs in someone’s garden and refused to come down. Without this collar, we’d have had no idea where she was - but thanks to it, we were able to find and rescue her. We normally charge it once a day while she’s sleeping indoors, but the battery can last for days if used carefully. I highly recommend Pettracer to all cat owners, it’s absolutely worth it.