This iphone splitter, lightening cable is 2 in 1. It is lightening headphone audio and charger adpater, works with iphone 7, 7plus, 8, 8 plus and iphone X. It works so very fast and quickly and you can have other things hooked up while it is charging. It is easy to set up and get started. We had no problems with it and were pretty excited that it was so quick. We will be getting another one soon.