Safely Keep Dogs Away - The ultrasonic dog deterrent emits high-frequency sound waves that are audible to dogs but not to humans. This safe deterrent gives you peace of mind and ensures your safety without harming the animal. Dual Ultrasonic Speakers - You can use the ultrasonic dog repeller to train your dog or take it with you to scare it away. The high-frequency flashing signals combined with the ultrasound increase deterrence, especially at night or in dimly lit environments. Portable Size - The ultrasonic dog repeller is compact and lightweight, so you can take it anywhere. The portable design makes the dog bark control device suitable for both indoor and outdoor use. Multifunctional - Not only does it come with a dog deterrent, but it also comes with a super bright flashlight that can be used as an additional way to stop an approaching dog. When you hold down the button, not only will an ultrasonic sound be heard, but the bright LEDs will also flash rapidly, correcting the dog's