Onboard USB interface, support U disk, USB mobile hard disk, USB card reader, and communicating with computer.

Can support all mobile flash memory cards such as CF, SMC, MMC, SD, XD, and MS memory bar through card reader.

Support MP3 file and WMA file. MP3 file supports all layers and all code streams, and WMA file supports all versions starting from V1. 

Use I²C slave communication, user can use common IO port to simulate I²C time sequence control.

Communication interface can connect with another I²C chips in parallel without adding control port extra.

Adopt the second generation of DOS operating system with independent intellectual property right, running speed is faster, support five layers of directories and each layer can support 255 files at most, it’s okay to open six thousand files at the same time.

Support the FAT12, FAT16, and FAT32 universal file formats of DOS or WINDOWS operating system, compatible with computer entirely.

Built-in 96-bit high frequency DAC analog-digital conversion chip, and sound effect is excellent.

Volume regulation with 10 steps.

Built-in preset equalization, with various sound effects such as classical, pop etc.

With LED display used to indicate system information.