This headset adapter from Delock allows the use of a conventional headset with two 3.5 mm jack plugs and a standard 3-pin arrangement on an iPhone, iPod, iPad or Lenovo notebook with a 4-pin 3.5-mm socket. Specifications https://elecena.pl/product/18945534/65447-adapter-cable-headset-jack-iphone-type 2021-06-28 https://elecena.pl/product/18945534/65447-adapter-cable-headset-jack-iphone-type 2022-12-03