... for children learning 3.With custom OEM sounds 4.Good sound quality 5.CE,RoHS,FCC,ISO Details: 1.Talking book ... Workshop, Electronic Assembly Workshop, PMC, Engineering Department (electronic/machinery), Quality Department, and Marketing Department (domestic trade/foreign trade), etc., and ... used DSP 16 Bit Record IC. this can be record sound quality clearer. This is advatange 1. (2) Advantage 2: ...