page_title: Bluetooth
section_title: Bluetooth devices
hierarchical_section_title: Bluetooth / Comparing Bluetooth to Wireless LAN / Bluetooth devices
caption_attribution_description: English: The Drone into the USB port of your computer, and it will immediately connect with your Bluetooth headset or headphones to provide streaming music and voice over a 100 meter (328ft) range. There is no software to install because the Drone has on-board software which communicates with your headset. The computer sees the Drone as a USB speaker and simply routes the audio automatically. When a Skype call comes in, Drone switches over to the call automatically. When used with the Callpod Dragon headset you can enjoy the full 100 meter range. Supports A2DP (Stereo) Bluetooth profile.
context_page_description: Bluetooth is a protocol for wireless communication over short distances. It was developed in the 1990s, to reduce the number of cables. Devices such as mobile phones, laptops, PCs, printers, digital cameras and video game consoles can connect to each other, and exchange information. This is done using radio waves. It can be done securely. Bluetooth is usually only used for relatively short distances, like a few metres. Some signals can be up to 100 metres.
  There are different standards. Data rates vary. Currently, they are at 1-3 MBit per second. Typical Bluetooth applications are to connect a headset to a mobile phone, or to connect a computer mouse, keyboard or printer.
  Bluetooth devices use the ISM Band around 2.4 GHz. This can be used worldwide, without the need to pay license fees, but many other devices, like DECT telephones, smart tags with RFID, baby phones use it too. Bluetooth uses the same bands as some WLANs, but the modulation technique is different. Bluetooth uses Frequency-hopping spread spectrum.
context_section_description: Bluetooth exists in many products, such as telephones, the Wii or PlayStation 3. It has recently been built into some electronic watches, modems and headsets. The technology is useful when transferring information between two or more devices that are near each other in low-bandwidth situations. Bluetooth is commonly used to transfer sound data with telephones (i.e. with a Bluetooth headset) or byte data with hand-held computers (transferring files).
  Bluetooth uses protocols that make it easy to discover devices that are nearby, and to set up a connection between these devices. Bluetooth devices can advertise all the services they offer. Using services becomes easier; a lot of the setup related to security, networking or permissions is automatic.
caption: A Bluetooth USB dongle with a 100m range.
exif: {}