Audio Jack 2.5 mm

[Ian Stirling]

Tim Niemeyer wrote:
> Hallo Vladimír,
> 
> * Vladimír Lapáček <vladimir.lapacek at gmail.com> [24-04-07 12:58]:
>> I would like to ask about the decision to use the 2.5 mm audio jack in
>> Neo 1973. If it is seriously intended to be used as a music player,
>> people would most likely use their ordinary headphones. In my opinion
>> most widely used audio jack is 3.5 mm, so why does Neo 1973 use the
>> 2.5mm one?
> I think that's only because it's smaller.
> 
> There are adapters for 2.5mm -> 3.5mm.

Which are either one long bit of plastic that lever the jack off the 
PCB, or a cable to tangle.
However, availability of 3.5mm headsets may be an issue.