The most important points to note are that the SXFI AIR is a wireless Bluetooth headphone, perfect for iPhone users and individuals who want the Super X-Fi on the go, and in the form of a headset. 

The SXFI AIR C though, is a wired USB solution, and perfect for someone who wants to use it on their desktop, laptop, or with their gaming devices. 

Here's a full breakdown of the specifications and differences between both products:

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