Comfort:

The 645 can be attached directly by the rubber earpiece, or with additional earhook. We preferred the smaller in size option - without the earhook, but even than, attaching it to the ear is not the easiest operation; although there are three sizes of the earpiece, none of them fits 100% and we had to press it to put it correctly in the ear. The headset didn’t stay stability and often biased down.

Using the ear hook, the last problem is greatly reduced. This will also give you some additional security and it will be sure the headset won’t fall of your head accidentally if you are walking faster or even running.

The 645 is not the most comfortable headset for continues usage. We tested it with the earhook attached, and after 20 minutes we started feeling it on our ear, disturbing us. After an hour more, we felt it unpleasant and wanted to take it off.

We appreciate the stylish design of the Plantronics 645; you may not like that its sides’ length ratio makes it look as a long headset, but it actually isn’t. It is small and stylish, in silver and black, and is gently attached to your ear. The earhook is delicate and doesn’t have anything in common to the big rubber hooks some other manufacturers use.


Conclusion:

As always, the 645 has good and bad points, but unfortunately we’d like to see more pros, in a high-tech device, than cons. It comes with astonishing accessories in stylish box that matches its class, but the comfort and performance are not as good as we’d want to. Although it stays still with the optional earhook, it brings you slight discomfort, and if you are not using it, the headset falls down your ear. The construction looks stylish, but the keys are hard to press, which in combination to the rather strange key-functionality may confuse you.