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(protocol, standard)
A specification for short-range radio links between mobile computers, mobile phones, digital cameras, and other portable devices.


The standard wireless network for short-range transmission of digital audio and data. Using radio waves, Bluetooth transmits through walls and other non-metal barriers. Although the term is synonymous with cellphone headsets and hands-free telephony in vehicles, Bluetooth is also used for wireless speakers, keyboards, mice, game controllers, smartwatches and more (for the different categories, see Bluetooth profiles). Constantly enhanced, see Bluetooth versions for version details.

Spread Spectrum Frequency Hopping
Bluetooth is a personal area network (WPAN) that continuously changes its frequency. It randomly changes to one of 79 channels 1,600 times per second in the same unlicensed 2.4 GHz band as Wi-Fi. See spread spectrum.

Scandinavian Origins
Named after ancient King Harald Blatan of Denmark, Sweden-based Ericsson developed Bluetooth and co-founded the governing body in 1998 ( Bluetooth is also an IEEE personal area network (PAN) standard (see 802.15). Supporting point-to-point and multipoint architectures (see piconet), there are billions of Bluetooth devices in use. See Bluetooth glossary.

Bluetooth = Headset
Because they are were so ubiquitous, "Bluetooth" initially became synonymous with "headset." However, Bluetooth connects many other devices.

Game Controllers
This "gamepad" from Sony uses Bluetooth to communicate with the PlayStation3 game console. See video game controller. (Image courtesy of Sony Corporation.)

Blue Teeth!!
This Oral-B toothbrush sends elapsed time to the app in the user's smartphone via Bluetooth to monitor brushing time and history.

The Bluetooth Logo
The stylized "B" displayed on this cellphone means it has been synchronized with a Bluetooth device.
References in periodicals archive ?
The Logitech Cordless Desktop MX 3100 keyboard and mouse are complementary in every way--from their advanced navigation and stylish design to the shared wireless receiver, which also serves as the mouse charging station.
The Logitech Cordless Desktop S520 is expected to be available worldwide in September for a suggested retail price of $59.
The diNovo Cordless desktop is designed for desktop use as well as for notebook users on the move.
Cordless desktop mouse-and-keyboard with Bluetooth wireless technology that gets rid of all those messy, annoying wires.
The Logitech Cordless Desktop MX for Bluetooth, Logitech MX 900 Bluetooth Mouse and the Logitech diNovo Media Desktop are also designed to turn the PC into a Bluetooth control centre so that other devices with the technology such as a PDA, mobile phone, headset or printer can be connected.
The Cordless Desktop Optical package will come with both a wireless keyboard and cordless optical mouse for less than pounds 100.
The second-generation Logitech Cordless Desktop Wave Pro combines the field- and laboratory-tested comfort of the Logitech[R] Wave Keyboard[TM] with the exceptionally comfortable, rechargeable Logitech[R] MX[TM]1100 Cordless Laser Mouse.
The Cordless Desktop LX-700 is a rechargeable cordless mouse and cordless keyboard that makes it easy to listen to music and Internet radio, use instant messaging, watch videos and view photos.
Cordless Desktop MX 5500 Revolution Includes Dynamic Display, Bluetooth 2.
Logitech combined three elements in its new Logitech[R] Cordless Desktop Wave design to enhance comfort without requiring people to change the way they type: an innovative wave key-frame design, a U-shaped constant curve and a cushioned, contoured palm rest.
The new Logitech[R] Cordless Desktop Wave[TM] and the Logitech[R] Wave Keyboard[TM] feature the innovative Logitech Comfort Wave Design, which increases keyboard comfort for Mac and PC users who want to do more, more comfortably.
Thus far, VideoYugs have included demonstrations of such items as a Logitech Cordless Desktop keyboard, a Universal 12V Plug-In Car Charger, iPod Flip Cases and Car Kits, Philips HiFi DJ-Style Headphones, a 12-in-1 Smart Card Reader-Writer - and dozens more.