Connectivity Today RamElectronics.Net: Line Level Audio Output Connection for iPod iPhone iPad

Connect iPad & iPhone To Headphone Amps & DACs - Moon Audio

The Saramonic SR-EA2D is a powerful low-profile, device-mountable Lightning audio interface for TRS and TRRS microphones and other audio sources.

SR-EA2D Lightning Audio Interface w/ 3.5mm TRS or TRRS Mic Input & Headphone Out for iPhones & iPads

How to connect your computer PC Mac to your stereo or Home Theater

ST-MA2 - RDL®

HOW TO CONNECT YOUR HDTV AND HOME THEATER

Phone connector (audio) - Wikipedia

Phone connector (audio) - Wikiwand

How to connect your computer PC Mac to your stereo or Home Theater

Phone connector (audio) - Wikiwand

Apple MFi Certified iPhone / iPad Lightning to HDMI Adapter

Phone connector (audio) - Wikiwand