Dogtra is the only e-collar brand with IPX9K waterproof rating. Dogtra's IPX9K rating has been specifically tested for waterproof protection. The Dogtra units were tested at close range using powerful water jets with high pressure and high temperature over various points. Astute trainers with proper training tools are the key to unleashing your dog's potential. For over 30 years, Dogtra has collaborated with industry professionals to create tools for e-collar training, GPS tracking, and ball training to support dog owners in developing top-notch dogs. Trusted by professional dog trainers, K-9 officers, and hunters, Dogtra enhances your training journey with durable training products, equipped with accurate and intuitive control, to ensure a great experience.