Dog Repr Trainer Dual Channel Dog Repellent Ultrasonic Portable Dog Training Tool to Prevent Dog Barking for Dog Training and Walking

Suitable Size: The portable dog trainer measures 13.7 x 5.5 x 2.5 cm / 5.39 x 2.16 x 0.98 inches. It is small, compact, lightweight, and easy to carry. It can be placed in a pocket and held when needed. Use it on the go. Quality Material: This handheld dog trainer is made of plastic, which is safe, reliable, and durable. It won't easily fray and can be used for a long time to deter dogs that bark at you, but it's harmless to the dog. Ultrasonic Bark Control: This handheld dog trainer uses ultrasonic technology. When used, it produces ultrasonic waves. The frequency of these ultrasonic waves will prevent your dog from barking. It is suitable for all breeds and sizes of dogs. The frequency is safe for pets and has no effect on human ears. But it cannot be used for too long, as it may be ineffective for the dog. Easy to use: First, open the battery cover, then insert a 9V battery (not included), turn on the switch, and you can use it to train the dog. As long as the battery is charged, it can function normally and, if necessary, be used as a flashlight. Multiple uses: This portable dog repellent trainer uses a gentle method to warn dogs not to bark; it can be used as a dog repellent device and a dog training aid to prevent bad dog behaviors, such as endless barking, digging, and fighting, etc., providing you with a calm environment to prevent your dog and the neighbor's dog from barking and disturbing you.