The coolest way for pets to travel. Pets breathe easier with the Cage Cooler. This deluxe, portable, high quality, high performance fan protects your pets from uncomfortable, dangerous hot weather and keeps them cool and relaxed at home or away. It works on 2 "D" batteries or with a cable (not included), to provide up to 100 hours of running time, with two speeds for maximum efficiency and powerful air circulation. The fan easily clips onto any standard cage, crate or pet carrier. Batteries not included.