
I have a StarSet H31 that I wanted to use with my iPhone and this adapter works great. You do NOT need any other amplifiers/etc. use. to make it work. Just plug the headset into the QD jack and the 4-wire mini adapter into the Lightning adapter and everything works great. The button on QD mutes your call, as expected. Works great for my application. I don't know why it got such a bad rating.

πΈ AVer M5 Document Camera: USB Webcam for Remote Video Conferencing - HD for PC, Mac, Chromebook, Zoom, and More - Ideal for Distance Learning, Classroom Teaching, Recording, Working & More
3 Review

INSWAN INS 2 Dual Mode Supplemental Conferencing
3 Review

JOYUSING 8MP Document Camera for Teachers - VGA/HDMI/USB Three Mode, Mac, Windows, Chrome Compatible - Ideal for Online Teaching, Distance Learning, and Web Conferencing
3 Review

IPEVO V4K: Ultra High Definition 8MP USB Document Camera - Perfect for Live Demos, Web Conferencing, Distance Learning & Remote Teaching on Mac OS, Windows, and Chromebook
3 Review