about this project Humane & Environmental ProtectionPowerful ultrasonic with siren, equipped with infrared motion sensor, drives various animals at different frequencies, only for humane driving, does not contain chemicals that threaten the health of humans and pets, and will not cause harm to animals. Strong Waterproof and WeatherproofThe ultrasonic insect repellent with IP44 waterproof design can work in all weather conditions such as rain, snow, ice and wind. Work effectively year-round in virtually all weather conditions. Note: Do not immerse it in water. Solar Rechargeable BatteriesThe latest upgraded version of the waterproof ultrasonic insect repeller supports USB and solar power (3 AA rechargeable batteries included). No matter the weather, it can be charged. Please fully charge the battery before first use or after long time use to prolong battery life. (takes 6 hours) Wide Area Cat RepellerInfrared PIR motion sensor angle up to 110 degrees, detection range up to 8M / 26.5FT. When it detects that there are animals around, it will automatically send out ultrasonic waves with a frequency of 12.5-25KHz, emit a strong flash, and sound an alarm. Guard Your Garden All DayThe cat alarm uses ultrasonic waves to repel cats and other animals (such as dogs, cats, mice, voles, skunks, raccoons, foxes, birds and other pets) throughout the day. As a bird repellent, it emits a powerful flash of light at night to repel unwanted wildlife such as pigeons, owls, crows, bats, and more. Product parameters: Product size: length 17.8cm, width 5.5cm, height 11.8cm, ground rod 25cm Product material: ABS Waterproof grade: IP45 Charging board parameters: polysilicon solar panel size, 80*43.8mm, voltage 5V, current 90mA Battery parameters: Ni-MH battery AA800mAh*3 voltage 3.6V capacity 2400mAh Product List: Machine*1, Aluminum Alloy Ground Rod*2, Charging Cable*1, Manual*1