Humanity & Environmental ProtectionPowerful ultrasonic wave with siren, equipped with infrared motion sensor, different frequencies to drive all kinds of animals, only for a humanitarian drive, no chemicals that threaten the health of humans and pets, and will not cause threatening harm to animals. Humane & Eco-Friendly No traps, no dead animals, and chemical free. Adjustable frequency and optional LED flashing and audible alarm allow you to drive out any animals, or repel them at the same time. LARGER DETECTION AREAThe infrared PIR motion sensor has an angle of up to 110 degrees and a detection range of up to 30ft depending on animal size. Get rid of animal droppings, food destruction, noise and footprints in just 1-2 weeks Strong Waterproof & WeatherproofUltrasonic insect repellent with IP44 waterproof design, allows it to work in all weather conditions such as rain, snow, ice and wind. Can be effectively working all-year-round under almost all weather conditions. Note: Do not immerse it in water. Solar Powered & Rechargeable BatteryThe latest upgraded version of the waterproof ultrasonic repeller supports USB and solar power (3 AA rechargeable batteries are included). Make it rechargeable no matter the weather. Please fully charge the battery before first use or after prolonged use to extend battery life. (requires 6 hours)