Abogados de Inmigracion

Once your connection is made and secured via a PIN (personal identification number), the two devices will "talk" to each other and exchange information. You can connect as many as seven devices simultaneously at speeds of 500Kbps and higher. Bluetooth does have limitations, however. Its range is limited to 30 feet, which makes it good for connecting a handful of devices but not appropriate for an entire network of computers--you're better off with Wi-Fi for a network. Also, you can connect only devices that have compatible versions of Bluetooth (more on this later).

Though Bluetooth itself may be easy to understand, choosing a Bluetooth headset for your phone isn't so simple. The number of Bluetooth headsets continues to grow rapidly. Styles, features, performance, and compatibility vary, so it's important to take the time to find a device that's right for you.

Most Bluetooth headsets have basic call features like the ability to answer and reject calls, last number redial, and so forth. Since sound quality is a priority with headsets, more advanced headsets like the Aliph Jawbone 2 and the Griffin SmartTalk also feature dual-microphone noise cancellation for better sound quality. Another up-and-coming feature is multipoint technology, which lets you connect up to two different devices at the same time. This is useful if you use one headset with two phones, for example. Headsets with multipoint technology include the Callpod Dragon V2 and the BlueAnt V1. And speaking of innovative features, the BlueAnt V1 was also the first Bluetooth headset to offer full voice command control. This meant we could say things like "Call Home" and if you've programmed the headset to do so, it'll do just that. The voice command on the V1 is independent from your phone, so you can use it even with phones that don't offer voice dialing, like the iPhone for example. There has also been information about headsets that actually use bone conduction to transmit your voice, so as to eliminate background sound altogether, but we haven't seen one for ourselves yet.

There are multiple versions of Bluetooth, and not all Bluetooth specifications are the same, so you might want to make sure your two chosen devices will work with each other. All of the newer Bluetooth versions are backward-compatible, however, so as long as you're using the more basic Bluetooth features, you won't have much to worry about. Most products currently work on Bluetooth version 1.1, which offers such basic features as voice dialing, call mute, and last-number redial. In 2003, the Bluetooth Special Interest Group, a body that oversees the technology's development, released version 1.2 and rolled out version 2.0 a year later. Bluetooth 1.2 introduced new features to eliminate radio frequency interference through frequency hopping and added greater security to protect against snooping and tracking. Bluetooth 2.0 brought higher connection speeds (as much as three times faster, in some cases), improved performance, and less power consumption. The SIG recently introduced version 2.1, which aims to improve pairing without the need for a PIN, requires even lower power consumption, and offers more security. Check out the various profiles and their features in the chart below.