This is an amazing bit of kit! The call quality is fantastic, very clear and the noise cancellation part works very well. I have taken calls via the headset and made a call to someone else wearing the same headset and am very impressed. You can transfer calls between phone and headset but this is only one way! Pairing the headset is simple and is described with the instruction leaflet. However, the simplicity of this is very much dependent on what type of phone system you already have. If you're not sure, it's best to contact Plantronics themselves. They are very kind, patient and exceptionally helpful.
The headband is great. It's lightweight so you don't notice that you have it on. It doesn't really contribute that much to "headband hair" either. I did try the ear hook that came with the headset-these are interchangeable, but found it was too big for my ears and kept falling off. The headband allows the wearer to adjust the headset for either right or left ear use. This is done by a simple click and click process to firstly unclick the headset you turn it to the furthest pivot point and it comes free from the unit. Change ear position and click back into place.
There are full instructions with the headset. Charging normally takes +/- 3 hours for a complete charge and standby time is something rediculous like 90 hours!