GCI Technologies is now shipping the MS-USB, an all-inclusive portable sound system with a USB memory port and SD card slot, allowing direct playback of media files from thumb drives and memory cards. For added convenience, a stereo RCA input also lets you connect a CD player or iPod. Ideal for speeches, assemblies, tradeshows, parties, outdoor events and even mobile music applications, the MS-USB offers a great sounding, supremely portable PA solution.