Extension????

One cord is longer than the other, if thats what you mean.

The short one goes in your left ear, the other around the back of your neck to your right, this way they never come out as most of the weight of the cable is on the back of your neck, not flapping around in front of you.

Is that what you mean by extension???

Edit - Doh! just had a look at the link I posted to the Sony site, it does show an extension cord, not sure why but I don't have one??? Maybe I have a slightly older model? My cord is about 75cm long. $35!!! I paid £35 at the very same Sony Centre as boxer! Why is everything SO expensive over here?

Cheers

Cris.