General description The USB LED Dog Repeller is an ultrasonic device designed to deter dogs by emitting strong ultrasonic waves that are audible only to animals. With a range of 5-10 meters, it helps keep you safe from aggressive dogs during outdoor activities. Technical specifications Ultrasonic range: 5-10 meters Built-in battery: 350mAh Charging method: USB Standby time: 30 days Normal usage time: up to 5 days Charging time: 2 hours Usage This device is ideal for dog training and repelling unwanted canine attention during outdoor activities such as walking, cycling, or traveling. Other information Equipped with LED indicators for ultrasonic, power, and charging status Portable and lightweight design, easily fits in your pocket Includes a lanyard for convenient carrying