1) Enhanced 8051, up to 10 times faster than standard 8051

2) Embedded 32KB OTP for program code storage

3) Embedded FM receiver

4) OTG 2.0 full-speed controller

5) SD/MMC card controller

6) Support MP3 decoder

7) Embedded sound equalizer

8) Support FAT16/FAT32 file system

9) Embedded 18-bit Audio CODEC

10) Support auxiliary audio input

11) Embedded SARADC for peripheral controls

12) Embedded NVM to save external EEPROM

13) Support led display during battery charging.

14) Embedded RTC.

15) Embedded key tone generator.

16) Support segment LED display.

17) GPIO for various purposes

18) Embedded LDO

19) Embedded Power-on-Reset