The Learning Journey My Keyboard Music Center Early Learning The Learning Journey My Keyboard Music Center Early Learning with 12 Realistic Instruments & More! 37 Key Synthesizer Controls, Note Recordable, Volume Control 4 Different Drum Sounds, 12 Different Tempo Controls, Piano Keys 4 Cute Animal Sounds, 8 Demo Melodies, Programable Drum Sounds Uses 3 AA batteries (included), Ages 3 years & up, conforms to safety requirements of ASTM. Approximately 15" x 7.5" x 1.25".