This it is an important question.
Yes, even without any wireless connection, your Pix-Star can work normally and all features are active. No problem.
It will become a basic photo frame then, playing photos that you put in USB stick, SD card or copy to the local memory. Of course till you install a wireless router it WON’T be possible to receive photos by email or access web albums as this requires en Internet connection.
In a word, all features of the frame will work except the one in relation with Internet (receiving photo-mails, sending photo-mails, accessing Web Albums, etc…). But for all other features of a standard photoframe, no problem, your Pix-Star can work normally!
A wireless connection (Wi-Fi) is NOT mandatory to use this product, just that some features related to the Internet won’t be available.