- Dualhead High-Frequency Ultrasonic Repellent: This device features dual transmitters that emit ultrasonic waves at 20-30 kHz, effectively engaging dogs' hearing to deter aggressive canines and ensure your personal safety. - High-Frequency Strobe Light Deterrence: The built-in high-frequency strobe LED light flashes 10 times per second. This dynamic combination of sound and light enhances its repelling effectiveness, making it ideal for use in low-light or nighttime conditions. - Long-Lasting Battery Life and Fast Charging: Powered by a built-in 800mAh polymer lithium battery with a Type-C charging interface, this device can be fully charged in just 40 minutes. Enjoy up to 30 days of continuous use on a single charge, meeting your daily needs with ease. - Multifunction Operation Interface: Features a high-definition color screen and straightforward buttons for flashlight activation, normal sound waves, and enhanced sound waves. This user-friendly design allows for quick operation in various situations. Use Scenarios: 1. Walking in the park: Feel secure while walking your dog, knowing you have a reliable deterrent against aggressive dogs. 2. Jogging in the evening: Use the strobe light feature during your runs to enhance visibility and keep unwelcome canine encounters at bay. 3. Outdoor activities: Perfect for camping or hiking trips where you want to ensure a peaceful experience away from aggressive wildlife. This product embodies performance, practicality, and peace of mind, making it an essential tool for dog owners and outdoor enthusiasts alike.