Shure X2U XLR to USB Signal Adapter & Mic Preamp With USB Cable - NO BOX Plug and Play USB Connectivity allows the convenience of digital recording, anywhere your computer can go (compatible with Windows 7, Vista, XP, 2000, and Mac OS X 10.1 or later) Provides +48V Phantom power - USB cable (3m / 9.8ft) included for immediate use Monitor Mix Control for blending microphone and playback audio - Integrated pre-amp with Microphone Gain Control allows control of input signal strength Zero Latency Monitoring for real-time playback and multi-tracking without disorientation - 16 bit, up to 48 kHz sample rate for better-than-CD quality audio Includes X2U USB Adapter, User Guide and USB cord ONLY - NO BOX