user8046: Would it be possible to use to of these on two separate arduino's, to send and receive information? I am having difficulties understanding the chinese-english descriptions and haven't seen any documentation on doing this. There would be no phone involved. There would only be two arduino's with a Bluetooth module on each of them sending and receiving data from each other. 

user2926: The boards in your link look funny.  Typical boards like this include the "bluetooth circuit" which piggy-backs onto that board, and is soldered at all those little pads.
Have a look at say, the HC-05 board ~  https://www.google.com.au/search?q=hc05+bluetooth+module&tbm=isch
It's easy to see the part that's missing from the one in your link.
For these HC-05 boards, it's possible to pair two together.  They need to be configured as "Master" and "Slave" though.  Some bluetooth boards can do slave-mode only, so be careful before you purchase.

8046: <p>Would it be possible to use to of <a href="http://www.ebay.com/itm/Bluetooth-Serial-Transceiver-Module-Base-Board-clear-button-For-Arduino-SWTG-/231608470902?hash=item35ecf0cd76" rel="nofollow">these</a> on two separate arduino's, to send and receive information? I am having difficulties understanding the chinese-english descriptions and haven't seen any documentation on doing this. There would be no phone involved. There would only be two arduino's with a Bluetooth module on each of them sending and receiving data from each other. </p>
 2926: <p>The boards in your link look funny.  Typical boards like this include the "bluetooth circuit" which piggy-backs onto that board, and is soldered at all those little pads.</p>

<p>Have a look at say, the HC-05 board ~  <a href="https://www.google.com.au/search?q=hc05+bluetooth+module&amp;tbm=isch" rel="nofollow">https://www.google.com.au/search?q=hc05+bluetooth+module&amp;tbm=isch</a></p>

<p>It's easy to see the part that's missing from the one in your link.</p>

<p>For these HC-05 boards, it's possible to pair two together.  They need to be configured as "Master" and "Slave" though.  Some bluetooth boards can do slave-mode only, so be careful before you purchase.</p>
