The Cat Stop! keeps cats out of your flower gardens, yard or anywhere you don't want them to be. It's easy to use. Place the unit facing the area you want to protect. The built-in motion sensor detects the animal entering the area and emits a piercing, high decibel alarm. It startles the cat and frightens it away. Since the sound is ultrasonic you and your neighbors cannot hear it. It operates for up to nine months on one standard 9 volt battery. [Battery life estimate is based upon 4900 activations spread over 245 days at an average of 20 per day.] Unit protects about 330 square feet (20 feet or 9m in front of the unit in an 80 degree arc). There are no controls or adjustments. Simply install the battery and position in your garden. Availability: Usually ships the same business day. CAT-001 Most Orders Shipped Out Same Day! Premier Ponds LLC pondinfo@premierponds.com U.S.A. Copyright © 1999 - 2007 Premier Ponds LLC, North Salem, New York. All rights reserved. Thermo-Pond Heater 3.0, Aquascape Designs Pond Kits, ScareCrow Sprinkler, Nursery Pro Micro Pond Kits, AquaClearer, Microbe-Lift, Great Blue Heron Decoy, Pond Liners, Thermo Pond Heater & Deicer, Premium Koi Food, Select Koi, Butterfly Koi, Pond Aeration Pumps, Flexible PVC Piping, BioFalls, Skimmer, Aquascape Pumps, Cat Stop!, Animal Control Products, Pond Netting.