A Guide to BluetoothEverything you need to get started
So what is Bluetooth? Technically it's a short-range wireless networking standard. That may not mean much to you, so here it is in simple English:Short range refers to the distance two Bluetooth devices can communicate. In most cases, they can work to a distance of 33ft for version 1.1 to about 330 ft for version 2.0 and higher. Wireless means devices connect using radio waves instead of wires. Networking means that two Bluetooth-equipped devices can connect to one another to transfer data, audio or voice communications. Finally, Bluetooth is a "standard," which means that any device with the Bluetooth logo must be able to communicate or interoperate with another Bluetooth device. Bluetooth is a very easy-to-use technology to setup and use. Before you go shopping, there are a few intricacies you should understand: Profiles There are several feature sets of Bluetooth, called "profiles." Cell phones and headsets, for example, use the profile known as "Handsfree" to connect with one another. MP3 players and music systems with Bluetooth feature the "A2DP" profile (also known as "Stereo Bluetooth") for streaming stereo music. PCs and peripherals will often feature profiles like "Sync" and "Print". Matching the profiles is important to ensure compatibility between two devices. Just remember that in order to function as desired, both Bluetooth devices must support the same profile. Versions To make things a little more confusing, there are several versions of Bluetooth. The good news is that from a compatibility standpoint, using Bluetooth devices with different versions is generally not a problem. The newer versions of Bluetooth offer increased security, speed and range, while using less power. They are backwards compatible with older versions. Here's how the versions compare:
Pairing One more thing to know about how Bluetooth works is "pairing." The first time you connect to Bluetooth devices wirelessly, you must pair them. Pairing is essentially introducing the two devices, using a PIN code to set connectivity preferences and permissions. This security feature keeps, for example, your phone call from transferring to the Bluetooth headset in the car next to you at the stoplight. Once paired, devices will automatically connect once in range of each other. What Can I Do With Bluetooth? Bluetooth is not just for hands-free talking on your cell phone. The wireless technology is great for music listening, computing, syncing and printing, to name just a few. Here are some different ways that consumers are enjoying Bluetooth: On The Go Bluetooth headsets and stereo headphones are probably some of the most popular Bluetooth accessories. Bluetooth headsets and earpieces allow you to take your calls on the go without having to hold or handle your phone. Most offer buttons on the headset itself for answering or initiating calls, controlling volume and ending calls. For Bluetooth-equipped MP3 players, you can stream your music wirelessly to a pair of stereo Bluetooth headphones. In The Car Using Bluetooth in the car is also very popular with many drivers. With quite a few new cars featuring Bluetooth hands-free built in, many portable GPS navigation units offering Bluetooth hands-free talking, plus a plethora of add-on aftermarket Bluetooth car kits available, talking hands-free in your car has never been easier. Whether your local government requires hands-free to be able to talk and drive, or if you just love the convenience and safety of talking while keeping both hands on the wheel, Bluetooth can easily be added to any car. Products range from Bluetooth speakerphone systems which feature a microphone and speaker in one portable device to permanently installed devices that offer full function displays and can play calls through your car radio. At Home Bluetooth is just as convenient at home as it is away from home. Many PCs and laptops either have Bluetooth built in or can be easily retrofitted using a USB-Bluetooth adaptor. Once equipped with Bluetooth, your PC can connect quickly and wirelessly to devices and peripherals like digital cameras, wireless keyboards and mice, and printers. They can also sync with smartphones and PDAs using Bluetooth. What Do I Need? Basically, you'll need two Bluetooth devices. It might be a phone and a headset, or a computer and a keyboard. Here's a look at some popular uses of Bluetooth, and what devices and accessories you'll need:
Conclusion Bluetooth accessories can add convenience and functionality to devices you already own, like phones, MP3 players, digital cameras and PCs. Now that you know what you can do with Bluetooth and what you'll need to enjoy it, it's time to go shopping and pair up. More Articles on Wireless Technology: |
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