iSintek dog training collars are designed to help pet owners to solve unwanted behavior problems of pets and promote a harmonious relationship between people and pets. We are committed to researching the psychology of dog behavior and want to use this research to set up a bridge between owners and their dogs, let you and your dog understand each other better. We always believe that once people understand what dogs think,people can train dogs effectively. Our dog shock collar is equipped with a Type-c cable, which make the remote and receiver can be fast charged in 2 hours. And the receiver can last for about 30 days in standby time and 60 days in standby time. iSintek is committed to researching the psychology of pet behavior and exploring better ways of communication between people and pets. If you want to teach them some basic obedience commands or eliminate unwanted behavior problems, our collar is a good choice.