Maintain the usefulness of 3.5 millimeter plug equipped headsets by connecting them with the Analog To Digital USB Audio Converter to enjoy the full advantages of high speed internet connectivity with all audio files. USB plug helps language learning voice recognition games or listening to MP3 files. Microphone input eliminates the need for a sound card. Windows and Mac compatible. Reinforced strain relief connector wonÆt pull out. Use with separate microphone and headphone or headset. Phone plug input upgrades existing analog headphones to take full advantage of broadband streaming media