I use these at work, having used a manual wired training set prior and the difference is night and day. The Plantronics - CS55 Wireless Headsets are head and shoulders better. The pros of this piece of equipment are numerous. The wireless luxury gives you freedom abound and allows you to travel at least 50 feet an answer calls clearly, for me that's to anywhere in our office. The volume is precise and the sound quality is clear. Some people say they have had trouble keeping these charged but I haven't had a problem yet with that and have in fact never ran out of charge while using it. The headset itself is very light and comfortable and sometimes I forget it's on and leave the office with it on. The only cons I can think of is it is tough to get it to stay on the phone. We've tried velcro, rubber bands, and propping things under it. Nothing seems to work.. We have ended up having to replace velcro every month or so which is rather inconvienent. Even with this con I would recommend this to anyone looking for wireless freedom and comfort for their minions.