Effective and Safe: The best cat repellents can effectively repel common animals(birds, foxes, dogs, squirrels, rodents, etc.), through using high-frequency soundwaves to irritate, forcing them to look for other comfortable areas. And it's a safe and humane way to stop cats using your garden as a toilet. This bird scarer's sensitivity can be adjusted from weak to strong. For the best result, set the dial to the maximum when it works is suggested.Ultrasound and PIR Sensor: When unwanted animals enter the PIR sensor range, the sound waves and bright red light activate. The ultrasonic wave by changing frequency constantly deters unwelcome wild animals, keeping them from messing in your garden.Convenient and Battery Powered: Compared with solar energy, batteries can be more convenient. It can work well in virtually all weather conditions. Not just on sunny days. After setting up, you can leave them working outdoor without worrying about it. Batteries are not supplied.Wide Detection Range: The passive infrafed sensor has an angle of up to 110 degrees, a detection range of up to 8 meters to detect. Its large detection area range is good to get rid of wild animals away from your garden, yard, field, farm.Easy to Use: The cat deterrent is easy to install by pluging in the earth using the stake supplied, or it can be screwed to a wall or fence. Light weight and simple design makes it easy to move. In addition, please ensure placing the fox deterrent where it can't miss the annoying animals.Battery Operated:Requires three AA batteries.(Batteries are not included. ) Batteries life depend on the number of times the device is activated. Generally, they last for 3-4 months.And the repeller can be widely used in all outdoor environments, such as gardens, yards, terraces, garages, driveways, farms, ponds but also attics, etc.Caution:1. Do not stress or break the repeller when installing on hard ground. Prepare the ground for the ground stake to avoid damage to the unit is suggested.2. Do not immerse repeller in water.3. Do not cover-up the PIR sensor.Tips for using:1. Open the battery cover, put three AA batteries into battery tank correctly. Tighten the screws to prevent water from entering.2. Connect the Chaser head and the stake.3. Make sure the cat scarer's position is away from any regular movement area (such as public sidewalk). That will help you prolong the batteries life.4. Install the device to the direction that animals come from and keep the Chaser head roughly 9-10 inches above. Also you can hang on the wall or fence.5. Adjust the sensitivity to the position you need.6. Then you are good to go. The repeller is designed to be left "ON"continuously.size:11x6.8x45cmMaterial:ABScolour:GreenPackage Contents:2 x Animal Repeller2 x English manual2 Set X ScrewsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.