Summary: Arrived in plenty of time and as described. Very simple to set up and works perfectly. Clear at both ends. The only issue, which has nothing to do with Logitech or Amazon, is the piggish way Windows 7 needs to be configured to prefer a headset over the speakers with non-standard chat apps.
Summary: This is the 3rd pair of these I've had. One of them lasted 5 years! Unfortunately the last pair only lasted a year, but nevertheless well worth buying. They are lightweight so don't give you a headache, the sound is very good, no distortion at all. Ideal for gaming and voice comms if you're not into spending the earth on fancy headphones.
Summary: I bought this headset to listen to YouTube and my own videos on my PC so I didn't need anything fancy or expensive. This headset fits the bill perfectly at the price I wanted to pay. Easy plug and play with good sound quality. They are light and comfortable on my ears but as I only wear them for about half an hour at a time I can't say if they are just as comfortable after 2 hours.
Summary: headset works as described, worked immediately on plugging in, comfortable and sound is good. Good length on cable and I like the flexible microphone boom. Very minor quibble is that the mute light is small and is flat with the surface of the call control module. It would be easier to see if it sat up or was slightly larger.