ERCO6B Highlights Memory function. With LCD display. 206 FM channels. Supports SD/MMC cards. Main Features Audio Format MP3， WMA Additional Features Support FM  FM stereo with frequency from 87.0-108MHz Data Interface USB Interface Transmission Speed 32Kbps-256Kbps Operation System Windows98/SE/ME/2K/XP/Vista/win7/MacOS10/Linux2.4. Support Card SD/MMC Package Details Weight: 102.72 g Size: 19*16.5*6.5 cm Package Includes * MP3 FM Transmitter * Remote Control