Based on the theory that the dog trainer can effectively train your dogs to be obedient and discourage undesirable behaviors such as barking, digging, chewing, and more. Also, they are both useful for humans as well as harmless to pets and the sound can only be heard by pets. Super bright LED flashlight function is helpful when walking or jogging at night, which also serves as a battery indicator. 3 in 1 anti-barking device. In addition to being a pet training device, it can also protect you from dog attack. It is suitable for training many types of dogs, suitable for outdoor work, travel, and security night patrols. The dog barking controller confirms the ergonomic design, portable and handy, also practical to take with you, e.g. B. jogging or hiking, cycling, parking, etc. With adjustable hand strap. Portable.