Bluetooth uses a radio technology called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to 79 bands ( 1 MHz each ; centered from 2402 to 2480 MHz ) in the range 2, 400 – 2, 483. 5 MHz ( allowing for guard bands ).

Like DECT, DECT ULE standard uses the 1. 9 GHz band so suffers less interference than Zigbee, Bluetooth or Wi-Fi, which all run on 2. 4 GHz.

Bluetooth uses short-range radio waves over distances up to approximately 10 metres.

Bluetooth detection uses similar techniques to other traffic measurement technology, and will be as accurate as these other systems.

The Sony BD Remote Control ( shown here with and without PlayTV overlay ) uses Bluetooth connectivity.

In North America, is an ISM band used for unlicensed spectrum devices such as cordless phones, wireless headphones, and video senders, among other consumer electronics uses, including Bluetooth which operates between 2. 402 GHz and 2. 480 GHz.

Bluetooth uses custom algorithms based on SAFER + for key derivation ( called E21 and E22 ) and authentication as message authentication codes ( called E1 ).

Unlike most aftermarket controllers the TurboFire uses Bluetooth and connects wirelessly to the PS3 without the need for an adapter.

Bluetooth uses a 48-bit unique MAC Address, of which the first 24 bits are common to a manufacturer.

The setup of the initial state in Bluetooth uses the same structure as the random bit stream generator.

One other Viking Age runestone refers to Norway, the Jelling Stones DR 42 that was raised by King Harald Bluetooth of Denmark, which uses the name Norveg.

Bluetooth also uses the microwave frequency spectrum in the range of 2. 4 GHz to 2. 4835 GHz.

Because of this choice of frequency band, 802. 11b and g equipment may occasionally suffer interference from microwave ovens, cordless telephones and Bluetooth devices.

Devices operating in the 2. 4 GHz range include microwave ovens, Bluetooth devices, baby monitors, cordless telephones and some amateur radio equipment.

Power levels vary widely ( from 1 milliwatt in a Bluetooth node to 1 kilowatt in a microwave oven ).

A Bluetooth headset can talk to a mobile phone which is trunked on a microwave link, and at the other end someone is on a cordless phone.

The 900 MHz and 2. 4 GHz band are increasingly being used for a host of other devices, including baby monitor, microwave oven, Bluetooth, wireless LAN ; thus, it is likely that a cordless phone will suffer interference from signals broadcast by those devices.

Electromagnetic interference at 2. 4 GHz can be caused by 802. 11b and 802. 11g wireless devices, Bluetooth devices, baby monitors and cordless telephones, video senders, and microwave ovens.

Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances ( using short-wavelength radio transmissions in the ISM band from 2400 – 2480 MHz ) from fixed and mobile devices, creating personal area networks ( PANs ) with high levels of security.

The combination of these ( BR and EDR ) modes in Bluetooth radio technology is classified as a " BR / EDR radio ".

Maximum power output from a Bluetooth radio is 100 mW, 2. 5 mW, and 1 mW for Class 1, Class 2, and Class 3 devices respectively, which puts Class 1 at a lower level than mobile phones, and the other two classes much lower.

Bluetooth technology provides a way to exchange information between wireless devices such as personal digital assistants ( PDAs ), mobile phones, laptops, computers, printers and digital cameras via a secure, low-cost, globally available short-range radio frequency band.

Operates clearly in common congested domestic radio traffic situations, for instance, generally immune to interference from other DECT systems, Wi-Fi networks, video senders, Bluetooth technology, baby monitors and other wireless devices.

For example, both Bluetooth radio and invisible infrared light provides a WPAN for interconnecting a headset to a laptop.

Additionally the level of complexity is continuously growing as devices are required to manage many variables such as serial, USB, TCP / IP, Bluetooth, Wireless LAN, trunk radio, multiple channels, data and voice, enhanced graphics, multiple states, multiple threads, numerous wait states and so on.

Adaptive Frequency-hopping spread spectrum ( AFH ) ( as used in Bluetooth ) improves resistance to radio frequency interference by avoiding using crowded frequencies in the hopping sequence.

In addition to their use in broadcasting, transmitters are necessary component parts of many electronic devices that communicate by radio, such as cell phones, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, and spacecraft, radar sets, and navigational beacons.

Cordless headphones are not connected via a wire, receiving a radio or infrared signal encoded using a radio or infrared transmission link, like FM, Bluetooth or Wi-Fi.

It was describes as an " anonymous casual sexual activity with any partner arranged over Bluetooth radio technology enabled mobile phones.

Optional features ranged from a power moonroof to a discrete 5. 1 surround sound 14-speaker 330-watt Mark Levinson premium sound system, XM-satellite radio and DVD-based navigation with backup camera and Bluetooth technology.

It features a 16-bit TFT color screen with a resolution of 128 × 128 pixels, a VGA camera that can record video clips in H. 263 ( SubQCIF ) format at 128 × 96 pixels at 15 FPS, built-in Bluetooth wireless technology, FM radio ( when a wired headset is attached to the Pop-Port interface to act as an antenna ), and playback of 3GP video / audio at up to 30 FPS and MP3, AAC and AMR audio.

The new COMAND infotainment system includes a 40-gigabyte hard drive, in-dash 6-disc CD / DVD player, GPS navigation, Bluetooth wireless connectivity, harmon / kardon surround-sound system, in-dash memory card reader, high-definition digital radio, and satellite radio with real-time traffic service.

* Bluetooth wireless communications radio built-in

It included USB 1. 1, FireWire 400, a headphone port, and a built-in microphone, integrated 802. 11b wireless radio, as well as Bluetooth.

In February 2010, Chevrolet unveiled a 75th anniversary edition of the Suburban, which will have the LTZ trim with white diamond tricoat exterior paint and cashmere interior, along with standard 20-inch chrome-clad wheels, revised roof rails, integrated navigation radio, XM Satellite Radio, Bluetooth phone connectivity, rearview camera, rear park assist, remote starting, adjustable pedals, and leather upholstery with heated / cooled front seats.

Electronic meters now use low-power radio, GSM, GPRS, Bluetooth, IrDA, as well as RS-485 wired link.

* Bluetooth packet mode communication combines frequency hopping ( for shared channel access among several private area networks in the same room ) with CSMA / CA ( for shared channel access inside a medium ).

The timing synchronization to the video equipment may be achieved via a wired signal, or wirelessly by either an infrared, radio frequency, Bluetooth or optical transmitter.

Originally Gaussian frequency-shift keying ( GFSK ) modulation was the only modulation scheme available ; subsequently, since the introduction of Bluetooth 2. 0 + EDR, π / 4-DQPSK and 8DPSK modulation may also be used between compatible devices.

Each model also received an enhanced trackpad with scrolling capabilities, a revised Bluetooth module supporting BT 2. 0 + EDR, and a new feature which parks the drive heads when sudden motion is detected by an internal sensor.

Using a phone that supports 3G and Bluetooth 2. 0, multiple Bluetooth-capable laptops can be connected to the Internet.

Bluetooth 2 will use-DQPSK at its lower rate ( 2 Mbit / s ) and 8-DPSK at its higher rate ( 3 Mbit / s ) when the link between the two devices is sufficiently robust.

Bluetooth 1 modulates with Gaussian minimum-shift keying, a binary scheme, so either modulation choice in version 2 will yield a higher data-rate.

Hardware specs included 3. 7 " color TFT VGA display with 640x480 resolution, Intel XScaleTM PXA270 processor at 624 MHz, 336 MB of memory ( 256 MB flash, 64 MB SDRAM ), integrated 802. 11b and Bluetooth 1. 2, integrated Intel 2700G multimedia accelerator with 16 MB video memory.

2. 4 gigahertz Bluetooth connectivity is the most recent innovation in wireless interfacing for hearing instruments to audio sources such as TV streamers or Bluetooth enabled mobile phones.

* 802. 15x PANs ( e. g. Bluetooth, ZigBee ) 2. 4 GHz

* Specification of the Bluetooth System 2. 0 + EDR, Core System Package, Part B " Baseband Specification ", Section 9 " Audio ", November 2004

* Worldwide Type Approval Services for 315MHz ; 433MHz ; 2, 4GHz ; 24GHz ; 77GHz ; GSM ; UMTS ; LTE ; Wi-Fi devices ; Bluetooth devices ; Zigbee devices ; WiMAX devices ; RFID

In March 2011 Olivetti began producing the OliPad-its first ever tablet computer, featuring a ten-inch screen, 3G, WiFi, Bluetooth connectivity, Nvidia Tegra 2, Android 2. 2. 2, and a 1024 x 600 display.