Dog Training -repeller Control Pet Ultrasound Anti-barking Stop Bark DeterrentsDescription Dog Training Repeller Control Pet Ultrasound Anti-barking Stop Bark DeterrentsFeatures:-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, diggingand 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 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 serveas 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.Product Description:Name: Dog Repeller/Anti Barking DeviceMaterial: ABSColor: yellow / BlackSize: 140x40x30mm / 5.51x1.57x1.18inchPowered by: 9V battery (not included)Package Included:1x Dog Repeller