â–² Keep unfriendly dogs away; protect yourself from dangerous dogs while walking, jogging, or bicycling;
â–² Stop dog approaching you before it can bite you; A good protector for yourself;
â–² Also can be used to train dogs and bring you more fun; Need a 9V carbon battery (not included);
â–² Safe, humane and effective dog repeller; Can works with most dogs;
â–² Emits piercing ultrasonic tone that dogs hate and make dogs away from people.