I have two sets of Sennheiser HD25s and they, despite being sold as "Professional" equipment, have 3.5 mm plugs as standard, at least the later one has a screw on adaptor. I also have a Bose noise cancelling headset which doesn't have an adaptor as these are sold with an expectation of use with aircraft IFE systems which use 3.5 mm connectors. I only saw a 1/4 inch jack once on an aircraft, a SAA 747 SP.Fretless wrote:However, an increasing number of better quality headphones, like Grado's, now come standard with 3.5 mm plugs and 6mm adaptors.
Edit. Iphones appear to be rejecting headphone sockets altogether, constant rumours of bluetooth-only connections on next year's model.
I won't be upgrading to an iPhone 7 then, unless there is suitable Bluetooth receiver available, I don't need any more headsets.