The Complete Store Ultrasonic Pest Repeller- Safely Repels Pests Without Harmful Chemicals SAFELY REPEL PESTS FROM YOUR HOME: Using Ultrasonic sound safely repel mice, rats, cockroaches, mosquitoes, crickets, and many other pests. NO CHEMICALS: Safe to use in any room of the house PLUG AND GO: Just plug into a standard electrical outlet and watch the pests run GUARANTEED QUALITY: If you experience any problems our product comes with a money back 45 day warranty.