Use the Nikkai Lightning to 3.5mm Audio Jack + Lightning Charging Port Adapter Bluetooth Receiver to connect your headphones with 3.5mm jack to your iOS device. The 3.5mm jack is for Audio only and does not support telephone callling but there is also a Lightning Charging Port to Charge and sync your Apple lightning device at the same time. This device connects to your IOS device via a Bluetooth connection.
Works with all devices that have a Lightning connector including iPad and iPhone, supports iOS 10 or later. Small, and discreet size.