Engage even non-verbal students in classroom activities – they can tap in with their own recorded sounds. Record up to 7 seconds per buzzer- just tap, record, tap, and listen. 4 buzzers come in 4 colors and include activity guide. Just tap, record, tap, and listen! Great for the whole class or for engagement in small groups. Ages 3+. # Pieces In Set: 4 Number of Batteries: 2 Learning Skill: Sights + Sounds Power Source: Battery (not Included) Recommended Ages: 4 Years And Up Measurements: 7.75 Width/Inches, 7.75 Length/Inches, 2 Height/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported