At the flip of a switch, this sock monkey will repeat everything you say in a high-pitched voice while he bops his head up and down! If you giggle, he giggles, if you say a phrase, he repeats it back! Turn off to conserve battery life when sock monkey is not being used, on/off switch located on bottom. Requires 3 "AAA" batteries, not included. Measures 6-1/2" tall x 5" wide. Ages 4 and up.