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what is a wireless g card with bluetooth?
Yes, you can use the bluetooth until you have turned on bluetooth and paired the bluetooth devices.
You use a USB Bluetooth dongle.
There is Velcro in the package with the BlueTooth adapter that you can use for this.
hacking with the use of bluetooth (like your cellphone has)
No, bluetooth is a serial interface.
no it does not cost to use Bluetooth ow ever Bluetooth is very slow on the iPhone 4
No. 3G and Bluetooth use different types of signals, so they cannot be used together. However, you can use Bluetooth on your computer to use the 3G connection on your cell phone.
Sony Ericson is the first to use Bluetooth technology.
No, it is not necessary to use a bluetooth adapter all of the time. This is only a temporary tool for bluetooth. If you are unsure, you could always ask your local bluetooth provider.
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yes a ps2 and Nintendo have bluetooth