AC2092 Features 1. Built-in 24bit DAC, signal to noise ratio of 92dB, beyond CD-quality sound. 2. boot without POP sound, background noise is very low, pristine sound quality. 3.RTC independent power supply, current 10uA, no backup battery. 4. "Link":.. USB sound card, the audio data directly to the AC2090 DAC decoded output, such as CM102 card reader directly plugged into the PC to copy the songs on speakers U disk or SD card, as CBM4081 HID man-machine interface, card speakers Press play / pause, previous / next song, you can adjust the synchronization with the PC. 5. Compatibility Super good: U disk, U disk can read all kinds of master / Capacity and white film / black tablets. "Reader U disk", the reader can read the six original master (insert T card reader, when U disk use). T card / SD card, the card can be read various capacities, and support 32G SDHC. 6. Unique built-in 10 seconds boot LOGO music. 7. The radio effect, less fake units. (RDA5807, BK1080, TEA5607, KT0830EG)