Want something more powerful than a crate fan? This portable folding fan provides up to 300 hours of use with 4 alkaline "D" cell batteries. Features include variable speed control so that you can choose the airflow rate, ability to direct the powerful airflow exactly where you want it (you can even put it on top of the crate and face it down), ultra quiet operation, a LOW-OFF-HIGH switch for added energy savings (fan will run 75-100 hours on high and up to 300 hours on low), and a socket for a 6-volt adapter (not included) so that you can run the fan from an electrical outlet or a cigarette lighter plug. Keep cool wherever your dog travels take you! Size is 5"L x 7"D x 2.5"H when closed and 5"L x 7.5"D x 7"H when open.

Note: Using a fan to increase circulation in a wire or mesh crate in hot weather improves your dog's comfort. To improve it even more, place a damp towel on top of the crate while you're using the fan.