Olympus VN-4100PC Digital Voice Recorder and Olympus ME-52 Microphone Outfit - Olympus AOLYVN4100PCK1 Olympus VN-4100PC Digital Voice Recorder Olympus ME-52 Noise Cancellation Microphone Olympus KA-333 Compaticord (Connects Earphone or Headphone Jack Output to Mic Input Jack) AAA Battery 2 Pack