In-ear headphones (inserted inside the auricle) usually have a shorter wire to one ear than to the other. Is it standardized?

Question

Cables and wires

Is it safe to say that the wire to the left ear will always be shorter (or will always be longer) than to the right, because that's the standard? Or, as in the case of mice, are there "mirrored" modifications designed for left-handers?
If a standard exists, what was the reason for choosing a particular ear with a short (or long) wire when designing this standard?
Is there a mnemonic rule that makes it easier to remember which ear corresponds to a long wire, and to which a short one?
_{I read the English-language and Russian-language Wikipedia, but I did not find the answer to these questions there.}

Answer 1

All the headphones with wires of different lengths that I met suggested a short left and a long right, which is thrown over the back of the head. I don't remember the opposite.
In this case, the common supply wire (up to the box with control buttons) is located closer to the heart and it is more convenient to reach it with the right hand, which is more adapted for various manipulations.

Answer 2

I think the standard is caused by the location of the pocket on the T-shirt. If earlier the player was put in a breast pocket, then the wire from it [player/pocket] to the left ear was clearly shorter and, therefore, longer to the right ear.

Answer 3

Available in the same length. I had these - Philips SHO9575BW .
On off. site you can see these same headphones, and many other interesting ones.
Specifically, you will need to look in the Cable length column to find the right headphones. If it is, for example, Cable length: 1.2 m , and not Cable length: 1.2 m + 1.8 m , then these are headphones of the same length, and vice versa.

Answer 4

There were Panasonic rubles for 400 with the same length and native Samsung from the player, also with the same. There is no standard.