Bluetooth headset have a small button to on/off which also work as reset button (My nokia bluetooth headsset have)
Click the button and keep pressing untill ur led indicator start blinking.
The blinking led indicator is the sign or reset mode.
Now you can pair any cellphone with it...but u have to reset it again in case u want to pair it with any other cell.
Donno about PC connectivity...u have to try it using similar way
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Nikon D3100+18-55+55-200+50mm+55mmMicro,
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