Refurb iBook question

My question is: does this unit have Bluetooth? Is there any way of checking?

No it didn't come with built-in Bluetooth. Apple's "official" Bluetooth add-on for Macs before built-in Bluetooth was the D-Link DBT-120 USB.

http://www.everymac.com/systems/apple/ibook/stats/ibookg4_1.212.html

http://www.dlink.com/products/?model=DBT-120

Instead of this refurb unit for $799, it might be worth it to plunk down $999 for the current 12" 1.33 MHz iBook. You get 256 MB more RAM (higher memory ceiling), a larger hard drive, and built-in Bluetooth. Plus it would be a new unit.

Amazon.com has it for the standard $999, minus a $50 rebate. Last month it was a $100 rebate. I bought my current 14" iBook when they had a $150 rebate on it. And depending on where you live, you might not need to pay sales tax upfront.

Be sure to pick the Amazon.com order and not one of their 3rd party sellers. I'm not exactly sure why the Amazon.com option isn't the first one made available. Perhaps because J&R has it in stock and Amazon has it on order.
http://www.amazon.com/exec/obidos/tg/detail/-/B0009U7WZM

Here's the rebate form:
http://g-images.amazon.com/images/G/01/00/10/00/12/90/07/100012900741.pdf

Oh - I forgot to add that the new 12" iBook also comes with the sudden motion sensor to protect the hard drive.