dealsmagic wand portable scanner for $49.99

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I found some difficulties when I use it to scan my docs
But it becomes easier when I found the right way to do that in this video :
http://www.youtube.com/watch?v=fIz03cTGCAY&list=TLp6a4powqsk3imrhGfm-bdiN9vfw_Nfjz&index=9