The M1250B condenser microphone has a fully integrated preamp and detachable cable providing immunity from RF interference caused by cell phones and GSM devices. The M1250B is designed to mic acoustic instruments, overhead stages, podiums, conferences and presentations. In addition to the stock cardioid model in black, the M1250B is also available with different polar patterns and colors. This pattern picks up from all directions, offering very little in the way of isolation or feedback control. However, the omni pattern offers the most accurate and natural sound reproduction of all the patterns. It is ideal for recording, live broadcasts or video where sound reinforcement speakers are not an issue.