These put the FUN in function cards. Give your Paper Shoot brand new features with these removable SIM cards! - Function Card – Square Photos When this SIM card is inserted into the small slot on the camera, it will take square photo and video format. ** This product works with the 18MP camera ** -Function Card – Retro Frame When this SIM card is inserted into the small slot on the camera, it will add the retro / polaroid style frame to your photos! ** This product works with the 18MP camera **   - Function Card – Double Exposure - When this SIM card is inserted into the small slot on the camera, you can get the double exposure effect! After the first photo is taken, take the second photos within 10 second under the same colour filter mode. ** This product works with the 18MP camera **   Function Card – Color Palette Recording When this SIM card is inserted into the small slot on the camera, it will add colour palette on photos & video format. First filter: Colour palette on colour setting Second filter: Colour palette on B&W photo Third Filter: Color Palette on timelapse Fourth Filter: Color Palette on video recording *Using a filter card will reduce the resolution of a 20MP+ image to 18MP (4896x3272 pixels).