Description: Brand new and high quality. Fits for any size of dogs this dog dark repeller uses 5 seconds of ultrasonic sound that works effectively to reduce excessive bark of dogs, but out of humans hearing range. Ultrasonic Repeller: You can uses it to correct inappropriate behavior for dog training; One bark or short noise will not be triggered the controller, effectively filters out the false triggering caused by ambient noise or occasional barks from the dog. Wall mounted, suitable for indoor use like home, schools, restaurants, hotels, garages and other places. Specification: Material: ABS Plastic Size(LWH): Approx. 7x5x13cm / 2.76x1.97x5.12inch Wire Length: Approx. 90cm / 35.43inch Voltage: 220-240V Plug: EU Standard Scope of Application: Approx. 15m / 49ft Package Includes: 1 Piece Dog Sonic Trainer 1 Package Accessories 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.