[Effective Range]: The ultrasonic frequency of this bird repeller can be adjusted between 16KHZ-25KHZ, with an effective range of 5000 square feet (about 400 square meters), which can fully disperse pests and beasts around the house.[Powerful Function]: The ultrasonic pest repeller can provide 24-hour protection for your yard or farm, three working modes Infrared sensing mode: can detect hot objects within a distance of 1-20m in a straight line. Continuous mode: No infrared sensing is required, and ultrasonic waves can be emitted continuously. Scanning mode: Ultrasonic waves are gradually emitted from low frequency to high frequency.[Two Power Modes]: The animal repeller is powered by two 4C batteries or AC power. The detachable base can protect the machine from moisture and damage. (Battery not included)[Real-time Protection]: The unique seal and design allow you to place it anywhere. Protect your garden, lawn, cottage, shed, attic, farm, barn, warehouse, yard or any other place where pests need to be effectively and safely controlled day and night.[Easy to Use]: This is a harmless insect repellent with a variety of installation options. Whether on your wall or fence, or simply plugged into the ground, you can exclude rodents, seagulls, insects, mice, rats, birds, bears, deer and dogs.Our powerful ultrasonic animal repellent will provide safe and effective protection in any weather:1. Maximum coverage area is 5,000 square feet.2. Easy to install, providing excellent pest protection almost anywhere.Three modes:1. Induction mode: infrared induction heat generates ultrasonic waves (fixed frequency)2. Continuous mode: continuous ultrasonic waves without infrared induction3. Scanning mode: low frequency high frequency ultrasonic induction modeProduct name: Outdoor Pest RepellentProduct material: ABSPower: 3.6WRated frequency: 15-20k (HZ)Rated voltage: 110V-240VProduct size: length 16.8cm width 8.3cm height 13.6cmWeight: 0.6kgPacking list: Device*1 Screw bag*1 Adapter*1