1、4 Encoding Methods: The chip supports the synthesis of any Chinese text, can use GB2312, GBK, BIG5 and UNICODE four encoding methods 2、4K Bytes of Text: The chip supports the synthesis of English letters. When English words are encountered, they are pronounced alphabetically, and the amount of text synthesized each time can reach 4K bytes 3、UART and SPI 2 Communication Methods: The chip supports UART and SPI two communication methods. When the user's UART serial port resource has been occupied, you can choose to use the SPI interface 4、For Electronic Equipment: Suitable for electronic equipment, artificial intelligence, vehicle safety voice broadcast, toll station voice prompt, railway station, bus station, airport security check voice prompt 5、Voice Warning or Equipment Operation Guiding: Support multi channel voice warning or equipment operation, guiding voice prompt, voice alarm of mechanical equipment failure, fire fighting voice, timing broadcast, etc.