HOMY Ultrasonic Animal Repeller Solar Power Pest Repeller For Yard Garden Farm Park Scare Away Dog Cat Deer Raccoon Vole SAFE AND DURABLE MATERIALS: Non-toxic, no poison chemicals; Built in infrared sensor, detects and releases the ultrasonic wave or blinks the LED flash to eliminate unwelcome animals, pests and birds without hurting them. CLEARER ENERGY: Solar energy technology, wireless and rechargeable; Supports 2 kind of power sources: built in solar panel, 4X AA batteries(Not Included) EASY TO USE: Very easy to install and use, just turn it on, it will work automatically, no extra setting requires; WEATHERPROOF MATERIALS FOR OUTDOOR: Made of anti-UV and waterproof material, cope with all kinds of weather conditions; Waterproof Level: IPX4 FLEXIBLE TO USE:Can be mounted in the ground with the provided stick, or can be hung on a wall using the slot on the back.