Kbase Article of the Week: About Apple Lightning Docks »

Apple Support:

With an iPhone Lightning Dock, you can listen to music, plus charge and sync an iPhone 5 or later or an iPod touch (5th generation or later).

The iPhone Lightning Dock also has headphone playback support and audio line out. This means you can use the volume controls on your headphones or your stereo. If your iPhone has an Apple case, you can leave it on while using an iPhone Lightning Dock.