I'm currently using Sennheiser HD555 headphones which have a 1/4 jack. To use them on devices like an iPod or laptop, i need a 3.5mm adapter. Sennheiser gives you one for free, but I bent it. So I used this to replace it and it's excellent.
PROS: My headphones have a 1/4" plug. I use this adapter to use them on 3.5mm devices. Stereo to stereo. If you use the wrong adapter instead of this one, you may only get sound in one channel. This works great.
CONS: Shipping costs more than the adaptor, so be sure to add in a few other items to make it worth while. I suggest banana plugs or LCD cleaning kits.
I'm a Robotics Teacher and I love MONOPRICE! This product is perfect for my classroom computers. I have headphones with 1/4 ends and buying in bulk of the 3.5mm TRS Stereo Plug to 1/4in has been very helpful. The price is incredible also! Thanks MONOPRICE!
This product didn't work when we received it, it only sent through one of the two stereo channels (and yes, I know what you're thinking, I wasn't sending a mono signal to it or through it). Since it was so cheap I just went back on Monoprice's website and bought two (7165)'s which are the same things except solid metal and gold plated. I recommend those over this, any day of the week.
Not much to say other than they fact that they worked right out of the bag, and worked well. Didn't degrade audio quality. Can't say they're perfect however because they seem to be bending under their own weight and the weight of the headphone plug. After about a month or so, the 3.5mm plug was significant bent. However, I still believe they provide a good value for the money.