Shure PG27-USB Cardioid Condenser USB Microphone Bundle with Boom Mic Stand and Headphones USB Plug and Play 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) 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 1/8" Headphone jack for monitoring