This is a Chewbacca Version 2.0 Comm Tech oval chip that was originally planned for the second wave of chips that were abandoned and never made it to retail. As you can see it's a different shape and look to the standard V1 Comm Tech chips.
 
The chip is fully functional and when used with a commtech reader you can hear the sounds!
 
This item is part of a large collection of items I purchased of a Kenner / Hasbro factory clearance many years ago. There were a few quality control samples and various prototype items.
 
I was lucky to find what was left from initial run of them from this factory find.
 
Excellent pre-production piece for any Star Wars collectors and a great way into prototype collection. Also obviously brilliant for anyone with a Chewbacca focus or overall Chewie / Wookie love!