The Logitech headset has a good design giving user a small in-line controller to adjust volume and a mute switch for the microphone. Although it is well designed, unfortunately it is poorly built. Moving the headphone cord slightly off center from the controller for example, will cause the fade to shift from one ear to the next and back. I have owned several pairs of these devices and this appears to be a flaw they all share.
The microphone quality and sound quality however remain high as long as the cord isn't kinked or bent. The ear speakers are a hard padded material and after prolonged use, causes your ears to get somewhat sore.

PROS – Good quality sound, strong hard to break design. Good for the price.
CONS – Speakers make your ears raw and cord sensitive to being bent or kinked.