Highlights Power: 1 x 6F22 9V battery (included); Lighting: Slide the function switch to the " Light" site, press the "ON" button on the top, the machine can be used as a flashlight; Training Dogs: Slide the function switch to the " Train" site, press the "ON" button on the top, the machine can be used as a training dogs; Chasing Dogs: Slide the function switch to the " Chaser" site, press the "ON" button on the top, facing the dogs for a few minutes. It will chase the dogs away. The following conditions has no significant effect of chasing the dog: They are breeding dogs, dogs know that his owner will not hurt him A dog with the owner or a well-trained dog; When the battery voltage is too low, the ultrasonic energy issued by products will be reduced. Specification Shipping Weight (Kg):0.1463 Dimension (CM):19.6 x 17.8 x 5.1 Package Contents 1 x Dog Repeller;1 x Strap;1 x Extra Heavy Duty Battery.