DRIVE PESTS OUT - With advanced ultrasound technology to interfere spiders, rats, mosquitoes, cockroaches, ants, flies, insects, mice and lizards with the nervous system, making them uncomfortable and forcing them to leave. Pests and insects will no longer come back.SAFE AND ECO-FRIENDLY - It is safe and environment-friendly. Our ultrasonic pest repeller won't leave nasty dead insects or rats behind for you to deal with. Noiseless, no chemicals, no poisons , the ultrasonic pest repeller is 100% safe for your family members and pets.WIDE COVERAGE AREA - HOTLINKS ultrasonic pest repeller is effective in an area up to 800-1200 SQ.FT. However, as ultrasonic waves can't pass through walls and solid objects, we recommend you to place units in every room, and the serious problem area uses at least two sets of equipment.Easy TO USE - Please install our item at 80-120cm away from the floor. Just plug our ultrasonic pest repeller in the socket and it will work. In normal conditions, you will see the result within 3-4 weeks. If you have a hamster pet in your home, please don't use the pest repeller.PRODUCT GUARANTEE - Centering on the customer experience! We promise customers a 60 days warranty from date of purchase. If there is a unsatisfactory results after 3 weeks, contact us directly and we offer a full refund.