Features: 1. Efficient dog repellent, safe and harmless: This ultrasonic dog barking and barking control device uses advanced ultrasonic technology to emit waves of a specific frequency to effectively repel dogs without harming them. Safe for humans and the environment. 2. Intelligent color screen display, easy operation: The dog barking control device uses a high-definition color display to update the working status, battery power and mode selection in real time for easy management. 3. Portable design, use anytime, anywhere: This ultrasonic dog repellent device is compact and , easy to carry, and perfect for outdoor activities, travel and walks. 4. Long battery life and convenient charging: Equipped with a large-capacity lithium battery, the automatic dog barking and barking control device supports extended use time and can be easily via a USB port. User-friendly design, enhanced experience: Silent operation ensures that it does not interfere with the surrounding environment, while the dust and waterproof function of the ultrasonic dog repellent makes it and suitable for environments; 4 different frequencies, equipped with 4 color light indications Waterproof rating: IP45 Color: Black Material: plastic Package Contents: 1 x dog repeller 1 x data cable 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.