i have a targus 4.0 bluetooth usb adapter and so i can pair my iphone 4s and ipad air wirelessly, it seems to pair ok but when i try to connect i get a error message or not compatible. can some one tell me if it i can use this

No, you cannot pair the iPhone with the iPad, per the iOS supported Bluetooth profiles: http://support.apple.com/kb/HT3647

By "pairing" what are you trying to accomplish? iOS does not support Bluetooth file transfer if that's what you're trying to do.

You cannot pair them with the computer, either...that Bluetooth functionality is not supported for iOS devices.

sos1der wrote:

pairing the apple equipment is not a big deal just wanted to add songs from itunes wirelessly.

You can only add songs to your iOS device from iTunes via Wi-Fi sync or via your cable, not Bluetooth.

sos1der wrote:

but i tried paring my LG bluetooth so i can listen to music on my computer wirelessly buy it gives me the same error message

That's an entirely different issue, unrelated to your iOS devices.

What you are trying to do is covered in part by Home Sharing, http://www.apple.com/support/homesharing/ but not in the way you want to do so.

Using a Bluetooth headset with a Mac is discussed in: http://support.apple.com/kb/HT3563

Not a problem, why fellow users band together here to help each other and point you to the right information.

Make sure you have your Mac setup according to the System preferences guidelines in that article, HT3563.