Features: 1. Ultrasound: Ultrasound can reach 125db. Dogs cannot hear, but people cannot. 2. Precision: Effectively aim at animals with a distance of no more than 20m. 3. Lighting function: At the same time equipped with high-brightness LED lights for lighting. 4. Effective driving: Keep unfriendly dogs away, safe, humane and effective. 5. Practicability: This product uses ultrasonic to drive wild dogs and is used as a tool for pet training. 6. Portable: The product is compact and easy to carry. Descriptions: 1.Used to prevent dog attacks, issue ultrasound to repel the dog or wild wolf. 2.In normal situation, it can be used as a normal flashlight to illuminate at night. 3.The appearance design is exquisite, especially suitable for outdoor work, outdoor travel and security night patrol, and all kinds of dog training use. Specification: Material: Plastic Color: Black Size: 14*2.5*6cm Power: 1*9V battery?not included? Suitable users: joggers, walkers, bicyclists, delivery people, police. Package Included: 1 x Ultrasonic Dog Repeller 1 x English User Manual Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.