This is actually an extremely useful peice of kit that evceryone with a camera phone should have.
It attached very easily to your phone with a clip and provides different levels of brights to help improve the look and quality of your photos.
it really helps portraits and brings light to the face and reflects a beautiful ring in the eyes, its extremely flattering for selfies also.
I have been carrying it in my bag and cant imagine taking a pic without it now, it makes such a difference to my photos.