Anyway, I contacted KOSS recently (Sep. 2011), and they said that their "current stock of VC20 have a straight plug."Final thoughts:The amazing combo KSC75 + VC20 costs less than a set of crappy, flimsy, bad-sounding Sennheiser headphones with vol

The headphones are VERY loud when plugged directly into the computer when the system volume is any higher than 2%, so having a mechanical limiter like the VC20 is essential

Only works on full volume, when at all other levels sound only comes out 1 speaker not both headphones.

I have nice noise-cancelling headphones that I use with this item and can not tell any audio distortion or loss of quality by having them plugged into this as opposed to being plugged straight into the speaker.

I really enjoy their headphones.

I bought a set of noise cancelling headphones for a trip and want to use these to control the volume

My helmet is not fancy enough to have build in speakers, so I use a torn-apart set of cheap headphones

Although the headphones are excellent, they only turn on and off (having no volume control of their own).

This unit was bought together with JVC noise cancelling headphone.

I prefer headphones for TV use.

There are headphone amplifiers available which have that, if that's what you really want.

Works great, I was using headphones for my TV's stereo output and the sound was way too

If you're like me, you use your fancy expensive noise-canceling headphones at work to block out distractions.

This is a lifesaver for using headphones with my Dell D610 laptop which boasts an extremely noisy headphone jack with lots of interference at low volumes

By using this external volume control, I can adjust the volume so it's comfortable using headphones with the volume turned up high enough that the background hiss is reduced so the receiver audio is clear.

Thankfully no issues with this one and it saved me from having to buy an expensive headphone amplifier.

I purchased the Koss VC20 "Remote Volume Control" when I bought my Audio-Technica ATH-ANC7B noise-cancelling headphones.

and it actually made the headphones sound worse than when I did not have this volume control in

I use it with a Blue Tooth receiver to work as wireless headphones with a set of ear buds

I have a Koss Headphone but leaning back in my chair was not quite long enough plus the volume control is very handy to make a quick volume control when needing to make quick volume controls as well as getting some more space.

I have used VC20s for several years with my noise-cancelling headphones to overcome the limitations of aircraft volume controls (usually only a few discrete settings)

This way we can both have it as loud or as low as we want.

Agreed, it was inexpensive, but I still have a volume problem almost as bad as before I got it.

Works exactly as I expected

Overall it works and gives me a way to control the volume but not as sensitive as I would like.

it works as it should and faces rude treatment during use yet continues to work

THe price was right and the thing works as I expected it to

Works exactly as it is supposed to

I bought this with a specific use in mind: to use it with an old but good n' comfy Sony MDR-A34 vertical in-ear short cord headphones and my trusted Sandisk Sansa Clip Zip playing flac files