I received these to put underneath my daughters bed for a little added luminescence in her room.  They work great, plug into a USB outlet and change colors.  I have not figured out how to use the app, we just change the colors from the connected remote.  The only thing that was tricky, is that we tried to put the strip onto fabric.  It stuck for a while, but I would not recommend it.  I would recommend putting it on a hard surface that it can adhere to properly.  I really don't think there would be any issues.   We will be buying these again in the future for some different backlighting around the house.