Features Jerry AC1090 chip, Bluetooth Portable Speaker Design 1. Built-in 24bit DAC, SNR up to 92dB, beyond CD quality sound. 2 boot without POP sound, extremely low noise floor, pristine sound quality. 3.RTC independent power supply, current 10uA, without back-up battery. 4 "Link": USB sound card, the audio data is sent directly to the AC2090 DAC decoded output, such as CM102 card reader function, copy songs directly to the PC plugged into the speaker U disk or SD card, such as CBM4081.HID. man-machine interface, card speakers Press play / pause, previous / next track, you can adjust the synchronization with the PC. 5 Compatibility super good: U disk, U disk can read a variety of master / Capacity and white film / black film. "U disk reader," the reader can read the six original master (card reader plugged T, U disk when available). T card / SD card, the card can read a variety of capacities, and supports 32G SDHC. 6.'s Unique built-in 10 seconds boot LOGO music. 7.FM radio effect, less fake units. . (RDA5807, BK1080, TEA5607, KT0830EG) 8 more than 50 programs recognized by customers: LCD broken code / digital / color support, spectrum (LCD / LED) display, temperature / battery indicator, Bluetooth / 2.4G transmission, colorful / Marquee / white LED changes, Clock / Alarm / Calendar display song lyrics / boot logo; Koran / Bible / story books, iPhone / Mobile Docking charging design, motorcycle / cigarette lighter / 2.1 (5.1) speakers.