IDS Wireless Remote Control RC Rat Mouse for Cat Dog Pet Toy Novelty Gift Mouse powered by 3 x 1.5V AAA Batteries (Battery Not Included) Mouse Size: (L x W x T): 16 x 7 x 8cm Color: Gray Controller powered by 2 x 1.5V AA Batteries (Battery Not Included). Mouse Size: (L x W x T): 16 x 7 x 8cm.