lens for samsung Galaxy s3

So this year i wanted to start making more videos but the only camera that can capture my string movement is my phone (Samsung galaxy s3). So I’ve been on ebay looking at lens and I’ve found a couple but wanted to ask are they any good.

This is the one I’m thinking about buying
http://www.ebay.com/itm/3in1-Wide-Angle-Macro-Lens-180-Fisheye-Lens-For-Samsung-Galaxy-S3-Note-2-Black-/310805497108?pt=US_Other_Cell_Phone_Accessories&hash=item485d738514