Has one sided audio after a month or two on multiple units that are treated with utmost care.
Joe King, Amazon
3 May 2013
Summary: Despite being treated like gold - every single one of these headsets develops this intermittent audio in one ear problem where its almost like a loose connection on one side or the other. Its poor quality control or manufacturing process. Such a pity as I really like this headset for its weight and clarity. The other negative is the batter life. Its patchy but okay.
Summary: I got this headset from another vendor. Initially I was happy, but after a couple of months my headset developed the same intermittent failure of the left audio channel that other reviewers have mentioned. Occasionally the audio stream breaks up for four or five seconds, possibly due to RF interference, which can be awkward on conference calls.
Summary: I feel I need to add my voice to the many who have experienced the left ear piece failure. This is my 3rd one of these headsets and every time the left ear sound eventually starts to cut in and out. The reason I've bought 3 is because until this point it is a great product - sound is crystal clear, reception is great, microphone quality is great. Logitech just need to sort out this left ear issue before I'll buy another.
Summary: I've had this headset for a year now and used it daily for work calls. The headset itself is comfortable to wear for long time (and I mean 2-3 hours at the time) and is not hard on ears or head. It's very convenient to be able to walk around the house while on the phone although I did find it's reception quite poor - if I go to another room i.e. with one wall in between it starts cutting out.
Summary: These headsets are very good, but they only last about 3 months. There are many reports on the Internet and in Logitech's own forums on failing left earpieces. There is a YouTube video on how to replace the broken cables, but a product this expensive and by such a well know manufacturer should have been recalled and the problem fixed by now. All it takes is wires of sufficient length and durability. Not difficult.
Summary: Had two pairs of these ones with the same issue - within 8-10 months of use the left ear just "dies". The sound quality is good for talking, but not acceptable for music. Range is fair - about 8m (with two hollow walls in between) before the signal starts fading.
Summary: Ich hatte mir dieses schnurlose Headset gekauft, da ich mich bei meinen häufigen Telefonaten über Skype frei bewegen wollte. Das Gerät sieht nett aus, ist leicht, und einfach zu bedienen. Leider hatte es nach einigen Monaten jedeoch schon einen Wackelkontakt, der dazu führt dass der Ton links manchmal spontan an und ausgeht. Das Gerät ist zwar noch benutzbar, der Defekt irritiert aber immens während des Telefonierens.