This adapter plug in the air tube headsets into your iPhone.
 
The 3.5mm jack plug has been a standard audio fitting for many years and now many modern phones no longer have this port. 
 
This item is a straight plug and play adapter, no set up required.
 
All adapters are coloured as per the photo. Select your adaptor to suit your phone.
 
Depending on supply, sometimes the photos may be different than the products received. We try to buy the best adapters to fit these devices and sometimes supply of certain types changes.