Features:

• Frequency Response - 20-20,000 Hz
• Ear Coupling - Circumaural
• Microphone Frequency Response - 100Hz - 16,000 Hz
• Microphone Sensitivity - -58 dBV/ubar, -38 dBV/Pa+/-4dB

Editor Reviews:

Product Description:
The Logitech USB Headset 250 brings digital sound, convenience, style, and comfort together for an incredible audio experience. The headband and microphone adjust easily and the boom microphone can even move completely out of the way when you want to just listen to music. The leatherette earpads fit snugly and comfortably on your ears and the noise-canceling microphone filters out unwanted background noise for improved performance.

Rating : - Great headphones - comfortable.
I really enjoy these headphones - for the price you really can't go wrong.

I'm a bigger fella and I can wear these for a while without my ears going numb on me.

I also have a bad habit of tearing up headphones - these have outlived all of my others (maybe even combined. heh)