Hands Free Used While Talking On Phone
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by: Baring Maurice
Hands free means that the gadget can be used without the use of hands. The equipment which needs only limited use of hands or for which the controls are positioned so that the hands are able to occupy themselves with another task is called Hands free. Bluetooth is used as wireless technolgy in devices that are typically used for hands free communication but still requires a mobile phone.
Hands free devices includes personal navigation devices, hands free car kits and headsets. First it was introduced as optional features connected by a wire to the mobile phone but are now available without wires. In car’s stereo system options are available for Bluetooth hands free which utilizes the vehicle’s speakers to transmit the caller’s voice in the phone call and have an embedded microphone in the stereo system itself.
In many countries the use of mobile phone is restricted while driving a vehicle where Hands free are very useful. But certain studies have shown that it is the same when driving on a normal mobile phone the distraction is added to the driver and chances of accident are not decreased. They now also must deal with the same issues that standard mobile phones and land phones deal with since hands free devices replace a phone's own speaker and microphone capability in a phone call. Although there are others the main acoustic issues are echo cancellation and noise suppression. Many ways have developed to cancel the echo in the call which range from poor to high ones.
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