Item discontinued until further notice - Protect yourself from dangerous dogs while walking, jogging, or bicycling

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- Emits piercing ultrasonic tone that dogs hate
- Works with any dog
- Can also be used to train dogs
- Requires 9-volt battery (sold separately)

Eliminates barking and annoying behavior by emitting a piercing ultrasonic tone that pets hate, but humans can barely hear. Stop dogs from jumping, barking and biting.