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