Apesto Portable Edition, Electronic Dog Repellent and Trainer with LED Flashlight/Powerful Ultrasonic Dog Deterrent and Bark Stopper + Dog Trainer Device + Built in Alarm sound system PROTECT YOURSELF - The Apesto Portable Electronic Dog Repellent emits an ultrasonic high-pitched sound that is inaudible to the human ear but highly irritating to dogs and other small animals. Effectively stops barking and distracting dogs from a safe distance. TRAINING ASSISTANT - Correct unwanted behaviors such as digging, chewing on furniture, jumping on guests, barking and many more. Dogs will learn that bad behaviors are associated with the unpleasant ultrasonic sound of the Apesto Portable and will in time start to correct themselves. These ultrasonic sounds are not harmful to the dogs. 100% HARMLESS TO DOGS & SAFE TO HUMANS - This device does not harm the dogs but simply provides a distraction sound to the dogs. The device uses no harmful chemicals or causes any physical harm to the dogs. It uses multiple different types of distractions that is built into the device such as Ultrasonic Sound Waves, LED Flash Light & Alarm Warning Sound. LED FLASHLIGHT & ALARM - Features a LED flashlight. Flashlight acts also as a battery indicator; know when it's time to replace the battery, when the LED flashlight is weak it's time to replace the battery. The addition of the Alarm button will emit a loud alarm sound to either to frighten small wild animals or to draw attention to you when you are in danger. COMFORTABLE FIT - Protect yourself while walking, cycling, jogging, skateboarding. This handy device comes with a strap that you can put around your wrist so you wont easily loose it. The Apesto Portable Electronic Dog Repellent is small, dimensions measuring only 4.6 inches x 1.1 inches, and fits comfortably into your pocket and on your hand. Uses a 9V battery that can be purchased easily at any convenient store.