ULTRA EFFECTIVE RANGE Effectively stops aggressive dogs barking and repel them from up to 12-15 meters away. The electronic Dog deterrent emits a high-pitched ultrasonic sound which is inaudible to the human but highly irritating to dogs. PROTECT YOU AND YOUR PROPERTY when you meet a satyr or thief the device can emit very sharp alarm to scare them and attract near people's attention to your situation LIGHTING TORCH & RECHARGEABLE This device can be a lighting torch in the dark.you won't cost anymore on battery in the future as it is rechargeable(with power indicator led light) FITS IN HAND AND POCKET Protect yourself while trip, night working, cycling, jogging, mailing,meter reading etc. The dog repellent has cute shape with small dimension 3 inches x 2.1 inches, and fits comfortably in your hand and pocket. 100% HARMLESS TO DOG & SAFE TO HUMAN This device is harmless to dogs as no liquid no shock used,simple and easy to operate, it is the most humane way to protect yourself from aggressive dogs.