The M-AUDIO MobilePre USB Portable Preamp & Audio Interface is a versatile device perfect for recording audio on the go. With two mic inputs and two line inputs, this USB audio interface allows for easy connection of various audio sources. Its portable design makes it convenient for use in home recording, recording and live sound setups, and studio recording environments. The bus-powered feature ensures reliable performance without the need for additional power sources. The XLR input/output ports provide high-quality sound connectivity, making it an ideal choice for professionals seeking a reliable and compact audio interface.