This adapter lets you connect devices that use a 3.5 mm audio plug to your Lightning devices. Works with all devices that have a Lightning connector and support iOS 10 or later, including iPod ...

Compatible with SoundLink on-ear Bluetooth headphones Angled 3.5 mm (1/8") stereo male connector to 2.5mm stereo male connector fits laptops, iPod, DVD and other portable players ...

They connect via Bluetooth. Just download the Bose Connect app and press the button ... So can other people hear music from these headphones? Maybe if you were in a small, quiet elevator.