Despite what the description says for the "book type" case from siemshop on ebay, there is no belt clip on that model. The back is smooth, unlike the one pictured in junred's auction for the same style case (for more money). Personally, I think I prefer not having the belt clip. But if you want to use the car mount, you may need to get another style or the one from junred or directly from PDair.com (although, that might not have a belt clip either).