How Do Bluetooth Car Kits Work?

How does Bluetooth work?
Bluetooth is a way of allowing wireless communication. It is able to connect several devices at once without having problems with synchronization. Bluetooth has a receiver that uses 79 different radio channels that are all spaced very close to each other, only 1 Hz apart. The receiver can then use these radio signals to communicate with any device with a Bluetooth adapter. The adapters have a card that can receive signals from the Bluetooth receiver and then communicate these signals to whatever device the adapter is connected to. One unique aspect of Bluetooth is how it avoids interfering with other radio signals. After each communication, the frequency that the Bluetooth receiver uses to communicate with devices changes, thus avoiding interference.
How do Bluetooth car kits work?
When your automobile's ignition is turned on, the Bluetooth car kit automatically looks for a Bluetooth enabled phone. If it finds one within range, it then sets up a Bluetooth connection that synchronizes the car kit with the cell phone. Then, whenever a call is dialed or answered, the car kit picks up the voice signals and then sends it over a radio frequency to the cell phone, which then transmits it just like a regular call.
What features do Bluetooth car kits have?
Most Bluetooth car kits have the ability to detect and communicate with phones over a distance of around 30 feet. They also are usually linked to the car stereo, so that the music is automatically muted whenever there is an incoming call. Some have voice recognition built in, allowing for a call to be dialed simply by saying the name of the person you want to call. Others have easily accessed buttons for answering and ending calls. In general, car kits also have an LCD screen for caller ID, as well as the ability to connect multiple phones at once.