Newly introduced outdoor cat repellent processor in 2021. Equipped with sensitive PIR sensor, it can effectively prevent other animals from entering. Functions The main functions are barrier against insects, anti-pigeons, mouse repellent, pest rejection, anti-cats, anti-pigeons for balcony. Ultrasound mode: < /p> 0: Close 1: 13.5kHz-19.5kHz. Repellent of mice, rats, dogs, foxes, minks and other animals. 2: 19.5kHz-24.5kHz. Including cats, raccoons, skunks and other animals. 3: 24.5kHz-45.5kHz. Expel bats, birds, rodents and other animals. 4: Dazzling flashes. Drive out raccoons, boars, mink and other animals. 5: The frequency is variable and the LED flashes to keep all animals and birds away. < /p> Cat repellent parameters: Solar panel: polysilicon 5.5V 90mA 3.12*1.70 inches < p>Frequency range: 13.5kHz to 45.5kHz Charging voltage: USB 5V 1A, full charge for 3 hours Note:< /p> 1. Please use the USB cable to charge the battery for the first time. 2. Animal eviction will not be