What's the Difference Between Line and Mic Levels? - Shure USA
Sescom LN2MIC-TASDR100 Line Out to Camera Mic LN2MIC-TASDR100
What is Line In? - TAE
Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics