What technology enables a cell phone to be used as a hands-free device?

What technology enables a cell phone to be used as a hands-free device?

  • Wi-Fi
  • Bluetooth
  • 4G
  • Yosemite
    Answers Explanation & Hints:

    Bluetooth provides a way to connect wireless devices, such as headsets, to a nearby mobile device. Wi-Fi and 4G provide WAN access to voice and data. Yosemite is the code name applied to a recent version of Apple OS X.

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