About This

• 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.