... with pre-recorded and re-recorded. The16 keys bilingual electronic learning machine for children book ·· Activated: by press button. Function: To understand ... can choose)· Components: PCB,sensor,voice chip,speaker,LED indicator and batteries, more or less for different item.· Plastic shell : ... Sound:could be any animal sounds,traffic sound effects,music,voice or any sound effects. sound time: 32 s-40 ...