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Compact hands-free adapter for use with a cellular telephone

  • US 20020183101A1
  • Filed: 05/31/2001
  • Published: 12/05/2002
  • Est. Priority Date: 05/31/2001
  • Status: Active Grant
First Claim
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1. A portable hands-free adapter device for use with a cellular telephone, the device comprising:

  • a loudspeaker electrically coupleable to the output of a cellular telephone;

    a microphone electrically coupleable to the input of a cellular telephone;

    a housing containing the loudspeaker and microphone, the housing being approximately pocket-sized; and

    means for reducing internal howling within the housing sufficiently to enable use of the device as a telephone speakerphone.

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