The 3.5 mm Audio plus Charge RockStar Adapter from Belkin lets you charge your iPhone and listen to music on it at the same time, With the removal of the headphone jack on the iPhone 7, you could only do one or the other, Thus, this handy adapter splits the Lightning connection, adding back the 3.5mm jack for headphones, speakers, and other 3.5mm audio devices, Moreover, this adapter also supports syncing via Lightning to USB