This EFX™ app allows you to control color on our special EFX™ fine art giclées or on our EFX™ printed advertisements. No longer does printed imagery have to be one dimensional, one color, and totally static in nature. With a US patented process, use our app to turn change particular object(s) to different colors our printed imagery. This app uses a Wi-Fi connection to communicate with an EFX™ device, which in turn allows you to control the look of your art or advertisements from anywhere in the world! Other advance features include an advanced timer, ability to choose over 16M different colors, ability to group multiple EFX™ devices together, ability to control and synchronize colors, and the ability for our special EFX™ prints to dance to the music; Just select a song off your smartphone or pull up your playlist from your favorite streaming music provider (e.g. Apple Music®, Pandora®, Spotify®).Note that this is NOT a standalone app and MUST be used in conjunction with one of our EFX™ patented prints or with an EFX™ accessory. In the event that you prefer to give voice commands to change the look of your imagery, the EFX™ app can be integrates with Google Home™, Google Home Mini™, Amazon Alexa™, Amazon Echo™, and Amazon Echo Dot™.