General description The Outdoor Waterproof Ultrasonic Anti Bark Control System is designed to effectively stop excessive barking without the use of electric shocks. This device emits a high-pitched ultrasonic wave that is inaudible to humans but can be heard by dogs, encouraging them to stop barking. Technical specifications Working principle: Detects barking and emits ultrasonic waves Design: Birdhouse appearance for outdoor use Dimensions: Not specified Weight: Not specified Compatibility and accessories Suitable for dogs of all breeds and sizes No receiving collar required Installation Can be easily hung on a tree or placed on a table Versatile placement options for indoor or outdoor use Usage Prevents excessive barking from affecting you and your neighbors Safe and effective for long-term use Other information