Sound quality was excellent as well. We had no trouble pairing the headset to our Motorola V600. Conversations were crystal clear, and callers said they had no trouble hearing us. Volume could have been louder, but it was nothing we couldn't live with. Logitech promises 7 hours of talk time and a little more than 10 days of standby time. In our tests, we fell short of the rated standby time by a day. For more Bluetooth headsets, check out our Bluetooth headset roundup.