An invisible button is an area in real space that is "clicked" when a person or object, such as a computing device or Smartphone moves into that physical space.
An invisible button is an area in real space that is "clicked" when a person or object, such as a computing device or Smartphone moves into that physical space.
An invisible button is an area in real space that is "clicked" when a person or object, such as a computing device or Smartphone moves into that physical space.