Protect Yourself Outdoors: Our ultrasonic anti barking device is designed to protect you from dog attacks when you are outdoors It is a portable, handheld device that emits a strong flashing light and high-pitched sound that can deter dogs from approaching. Powerful Ultrasonic Technology: Our dog barking trainer uses ultrasonic technology to produce a sound that is inaudible to humans but uncomfortable for dogs and cats Safe and Humane: Our dog automatic bark stopper is a safe and humane way to repel dogs without harming them The device produces a sound that is uncomfortable for dogs, causing them to retreat without causing any physical harm. Colour:Black Material:ABS Package Contents: 1x Dog Repellent(With LED light,Without 9v battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin