Talking chip module for book Attractiive design and funny sound Good for ... 's education CE and ROHS IC duration: 80, 120, 210 sec Number of buttons: 10,14,30,33 etc. Type of ... buttons: membrane Batteries: 3A x 3pcsTalking chip module for book An excellent children book keeps your kid ... size is available; Custom sound, housing design are welcome. Talking chip module for book