A hands free cellular phone system combining a full featured cellular
phone with a form factor of a conventional audio cassette is provided.
Several embodiments enabling real time interactive multimedia
applications are also provided. Said hands free cellular phone system
comprises a cellular phone device (1) in form factor of a conventional
audio cassette (9). Device (1) can be inserted into any conventional
audio cassette player (22) to transfer audio content into conventional
audio cassette player (22) by using electromagnetic coupling with
electromagnetic transducer (28) of said device (1) and electromagnetic
transducer of conventional audio cassette player (35). Said device (1)
provides a full featured, forward compatible, low installation cost hands
free cellular phone system.