Digital voice recorders provide great solutions for voice recognition applications. However, background noise will sometimes cause a problem. The ME-52W plugs directly into your digital recorder's 3.5mm microphone jack for uni-directional recording in high-noise environments. It will cut down on much of the background noise and result in a more accurate transcription. It also comes with a windscreen cover, a tie-clip and a 3.3ft extension cord. Note: When using a recorder with a 2.5mm mic jack, purchase the PA-3 Plug Adapter.