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I bought this product having already used it at a call center for a couple months. I've tried buying over-ear headphones before for home use but they really hurt my ears and give me a lasting headache and make my jaw seize up. Not with these. My ears can get a little sore sometimes but I can generally wear these comfortably for several hours. Very light and comfortable. Extremely easy to set up with the included USB receiver or via bluetooth to my phone. They also seem to charge very quickly and have great battery life. Range is good if you have line of sight to the receiver. You can have the mic boom on either side and the headphones will automatically switch right/left side for the sound. They also mute automatically when you take them off which is neat.
I just love the Voyager UC. Everything works flawlessly for me. Connection with the included BT600 dongle is stable, great range, perfect sound quality and noise cancellation. On top of that it easily lasts a whole workday and recharges overnight. Not a lot to improve.