If you do not have one, you can purchase usb bluetooth adapter.
Using Bluetooth USB adapter, they are very cheep, as low as £1,
A modern Mac will have Bluetooth built in so an adapter is not required.
The Arkview USB-DH88 adapter will allow you to connect up to 6 monitors.
If there is no built in Bluetooth adapter, then as long as you have a USB port then you can stick a USB bluetooth dongle into your computer's USB port. Then install any necessary drivers and set up your devices.
The speaker has a microUSB port, which I assume is for charging its internal battery. If that is the case any USB AC adapter and a USB to microUSB cable (see image) to connect them should work just fine.
yes
There are various places one could purchase a Bluetooth USB adapter. For example, Amazon, Viking, Ebuyer, Uk Cellphones, Impact Computers, Ebay and Dino Direct.
You will need an adapter to connect a 2-pin SAE cable to a mini-USB port. Look for a specific adapter that converts the SAE connection to a mini-USB connection. Simply plug the SAE cable into the adapter and then connect the mini-USB end of the adapter into the mini-USB port.
UPDATE: do you all think this would work to connect the external hard drive to a router that doesn't have a USB port (like the one i have) http://www.walmart.com/ip/TRENDnet-TU-ET100C-USB-to-Fast-Ethernet-Adapter/13214825?wmlspartner=GPA&sourceid=44444444440281732250
yes
Bluetooth isn't really something that can be downloaded; it requires a special piece of hardware. Windows XP and later include a Bluetooth stack, so if you purchase a Bluetooth adapter, you should be able to use it out of the box.