Features: brand new and high quality Safety: The ultrasonic pest repeller does not use any chemicals or poisons but just high-frequency sound waves which do not harm people or pets like cats and dogs as it does not involve the use of chemicals. Easy operation: All you need is to plug this device and it will start working. Versatility: Although these devices were made to ward off bugs and pests, it can also work on rodents like mice, squirrel and rats and small animals, who are sensitive to high-frequency sound. Litter-free & Human Way: Since pests like insects, rodents, and bugs are warded off the premises, you don’for t have to worry about cleaning up. No need to sweep off dead rodents. Fit to: Pest repeller is suitable for using in home, apartment, restaurant, school, office, basement, garage or any indoor areas. Effectively range 5,000-6,000 Sq.ft. Attention: Before using the ultrasonic squirrel repellent, make sure there are no obstacles, such as curtains or cabinet coverings. The unit should be continuously used for at least 2-3 weeks, so as not to interrupt the effect. Specifications: Material: Metal Color: Black+Silver Size: Approx.121x121x76mm/4.76x4.76x2.99in Weight: Approx.290g Rated Power: 5W Rated Voltage: 9V Package Includes: 1 Piece Ultrasonic Repeller Mouse Deterrent 1 Piece Power Cord with Plug note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!