Keep mice and small rodents away from your home with a 4-Pack of Pest Chaser units. Available at Gaiam for $54, the set drops to $43.20 with our exclusive 20% off one item code BRAD3. Pet Chaser uses ultra sonic sound waves to keep small rodents away from you home. Each plug-in works for 800 square feet and is a great way to protect your home without the use of dangerous chemicals or inhumane traps. Shipping is $7.99 and there's no sales tax (except CA, OH).