Razr V3m - Micro SD card compatible with these? Or should I purchase bluetooth USB adapter?

I have purchased a Sprint Razr v3m. I know that you cannot connect to any bluetooth other than your headset for Verizon, but is this the same for the Sprint v3m? I already downloaded a file from my friends phone that is not a Razr, so I think it works for sprint. I can either buy this (if it works) LINK BELOW

http://www.cellphoneshop.net/blusbdo.html

Or I can purchase one of these USB microSD card readers if the bluetooth will not work, although I am not sure if it is microSD compatible it is not in the list, and I'm not sure if the microSD adapter will do the job either. Here are the links below, tell me what you think.

http://www.cellphoneshop.net/usb20caremea.html

http://www.cellphoneshop.net/cousbcarefor.html