Animated explainer video

Hi, I'm looking for a straight-forward 30 second explainer video to be produced, by animating a set number of images that have already been created. You'll be sent the original design files for the graphics and we'll want them animated in a clean and simple way. A voiceover recording will also need to be added to the final video.

This is video is for a consumer product aimed at senior citizens, so it needs to be clean, clear and easy to understand.