Concept Research Pest Controller Ref: 2765 Pest Controller emits a 40,000 to 42,000 Hz ultrasonic signal every 8 seconds to protect an area approx. 2500 Sq Foot, unobstructed. Pest Controller is totally safe. Pets, and other wildlife remain totally unaffected. If not entirely satisfied, return undamaged within 90 days for a no questions asked refund. Pest Controller is guaranteed for 12 months. Installed in minutes - Operates continuously with a PP3 9v Battery, for approx. 4 months. Bans Mice and Rats from your home... FOR GOOD!! Permanently banishes Mice and Rats from your home Completely harmless - deters Mice and Rats Totally Safe - For Humans, Pets and other Wild Life Environmentally friendly - No more poisons or traps required Emits a 40,000 to 42,000 Hz sonic signal every 8 seconds to protect an area of up to 2500 sq. ft Installed in minutes - Operates continuously for up to six months before new battery is required Maintenance free Price: £24.95 (Including VAT at 17.5%)