- FOURHEAD ULTRASONIC SYSTEM: Equipped with four ultrasonic emitters powered by high-voltage drivers, this device offers maximum coverage and effective dog deterrence within a range of up to 49 feet, ensuring your space remains safe. - DUAL MODE DESIGN: Choose between Automatic Mode, which delivers 6-second ultrasonic bursts every 3 minutes for continuous yard protection, and Training Mode for on-demand control, allowing you to customize your approach. - ONETOUCH OPERATION: Easily switch between modes with a simple toggle. One press activates Training Mode, while two presses engage Automatic Mode, making it user-friendly even in stressful situations. - EMERGENCY LIGHTING: Features a multifunction spotlight with a long-range beam and SOS emergency flash pattern, providing visibility and security during nighttime use. - COMPREHENSIVE CONTROL: Dedicated buttons for training, immediate repelling, and warning beeps offer versatile options for any dog encounter, empowering you with the tools to manage various situations effectively. - EXTENDED BATTERY LIFE: With a large-capacity 2000mAh battery that fully charges in just 4 hours, you can count on prolonged and continuous protection without frequent recharges. - QUALITY CERTIFIED: This product is CE, FCC, and ROHS certified, backed by international design patents, ensuring reliable performance and peace of mind. Use Scenarios: 1. Ideal for homeowners wanting to keep their yards free from unwanted dogs, providing safe deterrence while enjoying outdoor activities. 2. Perfect for dog trainers who need an effective tool to correct unwanted behaviors during training sessions. 3. Useful for pet owners walking in parks or neighborhoods, offering immediate control when encountering aggressive dogs.