NEW Mein HERZ Handheld Dog Repellent Trainer, Anti Barking Device, LED Ultrasonic Dog Repeller and Trainer Device 3 in 1 Anti Barking Stop Bark Handheld Dog Training Device, with LED Flashlight, OURS IS BLACK

• Multi-functions: except as a pet training tool, it also can prevent you from dog attacks. It is fit for training many kinds of dogs, such as pets, dogs in police and shepherding, and is suitable for outdoor work, travel, and security night patrol. Note: This may not be effective for large dogs or fierce dogs.
• 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, digging, chewing, and more. They are also harmless to both humans and pets.
• Easy to operate: first open the battery cover and then put in 1 piece of 9V battery (not included); the sound is audible only to pets; finally, turn on the switch, and it can work well; they can also serve as a flashlight when necessary. Note: The effective range of this product is 20 feet.
• Handheld and convenient: the size of the device is approx. 12.5 x 4.5 x 2.6 cm (L*W*H), which is portable and handheld. It is also convenient for you to carry anywhere you need, such as jogging or walking, cycling, a park, and so on.
• Package includes 1 piece ultrasonic dog trainer and 1 piece user manual; Dog trainer color: orange; Note: A dog repellant can work on most dogs, but sometimes it won't on those giant dogs.