Why raise your hand when you can moo with Barnyard Answer Buzzers by Learning Resources? Encourage student response with some silliness! Includes cow, rooster, horse, and dog. Each measures 3 1/2″ diameter and requires Two AAA batteries, not included. Buzzer toys are easy to press. Finding toys suitable for severely disabled students is a challenge. Barnyard Answer Buzzers meet the challenge for many, delighting and reinforcing cause and effect. Also check out our Learning Resources recordable answer buzzers!