Super Ultrasonic Dog Chaser,Training Dog Banish Dog Machine Stop Animals Attacks Aggression

Emits a high-pitched sound pulse that's inaudible to the human ear but highly irritating to dogs. Ultrasonic wave reaches up to 125db, Effectively stops aggressive, barking and threatening dogs. Fits in pocket:Protect yourself while walking, cycling, jogging, skateboarding, etc. with this handy device. 100% safe to humans and harmless to dogs:Completely safe and does not harm dogs In normal situation, it can be used as a normal flashlight to illuminate at night.