Features: 1Superior Performance: Handheld dog repeller uses double channel enhancement, double dog training, incentive drive dog, super ultrasonic drive dog. 2Effective: Super ultrasonic dog Chaser sends out powerful ultrasonic and infrared laser action, can effectively drive the Wolf dog 20 meters/65.6ft away. 3Illumination: Handheld ultrasonic dog trainer has LED flashlights, super bright flashlights are an auxiliary weapon against dogs. Can be used as ordinary flashlight at night lighting. 4Applicable: Exquisite design, easy to carry, LED ultrasonic pet trainer is suitable for outdoor work, outdoor or travel and safety night patrol, all kinds of dog training. 5Harmless: The 130dB ultrasonic trainer physically stimulates the dog and has no effect on the dog's health. 6Humane Method: Ultrasonic dog repeller is the most humane way to protect yourself from aggressive dogs. It can also be used as a dog training device. 7Pocket Design: Super ultrasonic dog chaser can easily fit into a pocket. Bring your own lanyard, easy to carry to any place you need, such as running or cycling, walking, park, etc. Item Type: Handheld Dog Repeller Material: ABS Size: Approx. 13.7x5.5x3cm / 5.4x2.2x1.2in Battery: 1x9V battery (not included) Application: All Types of Dogs Package Included: 1 x Description&nbsp 1 x Drive the dog&nbsp