Voice Duration:12-340 sec LCD RAM:32*4,160*4,80*4,256*4 LCD Dots:4*32,16*33/8*40/4*40,8*40,16*64/8*64 Built in a tiny controller Readable ROM code data Built in direct LCD dirver Built in a dual tone melody generator Speech/Dual tone melody mixer is provided which can play speech and dualtone melody simultaneously