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 lightweight, 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 charged 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 durable and suitable for various 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.