Main Features:

✅Ultrasound design: Based on the theory that ultrasound, the dog trainer can effectively train your dogs to be obedient and stop some unwanted behaviors, such as barking, chewing, digging and more.

✅Wide application: Perfect for training various dogs, such as pets, dogs in police, Collie, Border Collie, shepherd dog, etc.

✅Easy to operate: First open the battery cover and then put in a 1-piece 9V battery (not included), the sound is audible only to pets, finally turn on the switch and it can work well, also they can serve as a flashlight when necessary.

✅Multi-functions: Except as a pet training tool, it also can prevent you from dog attacks, suitable for outdoor work, travel and security night patrol.