Increase your voice transmission and speech recognition accuracy with the robust Philips Plug-in Interview Microphone. Plugs in any 3.5 mm microphone socket and makes a great interviewing device for your Digital Voice Tracer or Digital Pocket Memo in seconds. The unidirectional mono microphone emphasizes foreground voices and its optimal positioning provides superb voice recognition accuracy. Includes two soft foam rubber windshields to reduce unwanted noise.