TechwareLabs posted a review on the MXL FR-310 Hot Shoe Shotgun Microphone

If you have ever recorded video in a noisy environment only to find out later that your video looks fine but sounds horrible then you need a shotgun microphone. These microphones help eliminate the noise you dont want and record what you do. MXL makes a dizzying array of microphones suited for all types of purposes. The MXL FR-310 is a budget conscious shotgun microphone for the average consumer and beginning videographer.

  MXL FR-310 Hot Shoe Shotgun Microphone Review