If these are the things that you need then you would do well to check out the Nokia LD-4W that is certainly a leader in manufacturing Bluetooth GPS modules.A portable GPS uses a satellite to give its location. A satellite in outer space sends out signals that the portable GPS navigation system receives and calculates its location based on the timing of the signals.

It then translates that to preloaded maps that are stored in the device to give the user a location based on the street and city the device is traveling in. Some portable GPS navigation systems offer different features even though everyone basically offers the same option of locating itself based on the satellite. Some are better at receiving the signals because they use multi-parallel channels that allow it to receive signals from several different satellites.

There are many different features that you can get in a portable GPS navigation system. You can opt for one with a bigger screen if you are going to be using it while driving. Many people feel voice direction is a must for a portable GPS navigation system that is used while driving because it allows you to keep your eyes on the road as the system calls out the direction to you. Some people feel this is a better option then a bigger screen because then you do not have to worry about looking at the screen while driving.

With the rising popularity of Bluetooth GPS devices it is hardly surprising to learn that there are numerous stores that sell the Bluetooth GPS antenna.One nice advantage of having a Bluetooth portable GPS navigation system is the ability to connect your Bluetooth cell phone to it and be able to make calls with out having to take you phone out of your pocket. Many portable GPS navigation systems can be transferred from one car to another allowing you to use it when you travel to different cities or to share it with your spouse. Some offer voice activated directions so you no longer have to punch in an address but can just say the address or the name of the person or place you want to go to. This is another effort manufacturers have made to make using a portable GPS navigation system safe even while driving.

For more information on IT Services Auckland and web design, you can turn to the author.