Q:

What does a Bluetooth dongle do?

A:

A Bluetooth dongle is an adapter used on non-Bluetooth enabled computers to connect wirelessly to a Bluetooth device. Most dongles plug into a USB port. A Bluetooth enabled computer has the adapter installed with the hardware inside the device, allowing the user to preserve USB ports for other uses.

Bluetooth technology uses radio waves to allow communication between two devices. Both Apple and Windows devices are compatible with the technology. Computer peripherals, including wireless keyboards and mice often use this technology.

For many individuals, the cellular telephone brought their first Bluetooth device. Earpieces and microphones allow the user hands-free use of the cellular device. Further development of technology and advancement of cellular devices as mobile hotspots allows users to connect a computer or other device to a cell phone for Internet access.

Bluetooth and Wi-Fi operate using unlicensed radio broadcasting. Both operate in similar radio frequencies, but use different modulation techniques. Wi-Fi offers a replacement for wired networking. It broadcasts over longer distances than Bluetooth and offers greater security. However, Wi-Fi also requires more expensive equipment, such as a separate base station, and often uses more power. Bluetooth is ideal for data transfers between two devices that are in relatively close proximity to one another.

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Related Questions

  • Q:

    Does my computer have Bluetooth?

    A:

    A computer with installed Bluetooth has a label at the bottom of the system with the word “Bluetooth” plus the Bluetooth logo on it. Another way to tell if a computer has Bluetooth is to search for it.

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  • Q:

    How far does Bluetooth reach?

    A:

    Signals transmitted using Bluetooth, a technology for connecting devices wirelessly across short distances, reach about 32 feet. Bluetooth transmission is relatively weak so that it does not interfere with TVs and other electronics. It uses about 1 milliwatt of power, while mobile phones typically use about 3 watts.

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  • Q:

    How does Bluetooth work?

    A:

    Bluetooth works by transmitting data through radio waves that operate at a low power level and a specific frequency to create an uninterrupted connection between two devices. The frequency that Bluetooth operates falls between 2.402 and 2.480 gigahertz and has been reserved for industrial, scientific and medical device use internationally. To avoid causing interruptions with other devices operating in the same radio range, Bluetooth signals are emitted at one miliwatts.

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  • Q:

    How do I reset my Emerson Bluetooth?

    A:

    An Emerson Bluetooth headset can be reset by syncing it with a phone or other device. If the Bluetooth is already synced to a device, it is possible to add a new device by switching the Bluetooth off and setting it to visibility mode, allowing the device to find it.

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