Check the listing for details. Dog Anti-Barking Deterrent Device Repeller Ultrasonic Bark Train w/ Flashlight. Color: Black&Orange, Condition: New. Listed at 29.99 USD. 2-in-1 Ultrasonic Dog Trainer: Anti barking device is a professional device for Dog Training and Dog Bark Control.The ultrasonic emitted by the bark control device can attract the attention of dogs and help prevent dogs from barking, digging, scratching, biting, climbing on furniture and other unwelcome behaviors. Easy To Use: With 4 Modes, Ultrasonic Flash Mode, Ultrasonic Mode , Sound Mode ,and LED Flashlight Mode.The dog barking control devices not only trains your dog, it also stops other dogs from approaching you while walking, jogging or biking.Just press the button and point the device at the dog while the dog is barking or approaching you, and the dog will stop their bad behavior.