Introduction - If you have any usage issues, please Google them yourself
ISD4000 voice is a combination of wizard panels long, and the youngest of the voice module, users can do not need to understand the voice and speech synthesis chip such as the internal mechanism of a simple external serial control can be obtained directly in an ideal speaker the effect of speech synthesis. Pluggable chip on-board audio, optional ISD4002, ISD4003 chip full range of 2-8 minutes.