Game show buzzers let you turn any lesson into a game and get students actively engaged as you assess them. Four different colors and fun sounds include a horn honx, boxing bell, doorbell and "boing" sound. Buzzers also enable students to work on their own while allowing them to signal to a teacher when they need help. Buzzers require three aaa batteries (sold separately) and are designed for children ages 3 and up. Ages: 3+ Grades: grades pre K+ # of batteries: 2 Battery type: aaa Batteries included: no