The microphone working when on a call, including this . Listen to music and charge you iPhone at the same time. Compatible with iPhone 7 and 7 plus. With any converter in the market you will not have.
HOW TO USE THE SPLITTER:
Insert iPhone Headphone Splitter's connector into the iPhone
Turn on iPhone's Bluetooth to search
Click "LA006BT" to pair
Insert earphone, you can enjoy calling, music...
iPhone Headphone Spliiter will pair automatically when re-started
Makes sure your iPhone's Bluetooth is turn on and well connected with this adapter, otherwise, only recharge function work.
The adapter can only connect one iPhone one tiem, if change another iPhone to connect, (both iPhones are closed to), please forget the device of the 1st connected iPhone, otherwise may not search the item.