Ive sold many headsets to both very satisfied and unsatisfied customers. I am going to share with you my knowledge and hopefully help you choose the right one.

*Very important: some people have been sold fake Motorola headsets, I dont know how widespread this is.. But read the sellers feedback first. A seller selling fake headsets will have received negatives as such. A price too good to be true.. may be just that.*

The major factors (as with most things you buy) are price, functions, style..

#1 Price.. its all a matter of your budget and needs.. if you use the headset very rarely, a regular model will do the job.. most low priced headsets from reputed manufacturers will do the job..

#2 Functions, this includes headset talk time / standby and quality.. Depending on where and how you intend to use the headset, you may opt for a longer talk time.. this is very important for those that may not have access to their wall or car charger. Lower priced models have about 4 hours talk time and higher priced up to 10 hours of talk time.

Most bluetooth manufacturers have some type of  quality technology. Motorola has CrystalTalk, Jabra has Wind / noise reduction, Logitech has WindStop... The key is figuring out what you need and recognizing the technology.

Also, many headsets have 30 foot+ range, depending on your work / home and the like.. this may be a important factor to you.

Note: Most headsets include just a home wall charger, a car charger usually needs to be purchased separately.

#3 Style, this isn't so much at what color the headset is, rather I have found that many are outright upset at the headsets weight / fit / feel etc..

Its hard to say exactly what weight is best, but i'd say to keep it under 15 grams.. definitely for all day wear.

Some headsets have no hook, rather a in the ear gel that some may find more comfortable,  another factor is how the headset buttons are, what buttons / options are on the headset. LED light indicator to let others know that you are or aren't talking.

You may also be interested in a over the head headphones like headset.. I sold a model by Logitech (mobile pro) and they seemed to be satisfied.

There are behind the the neck headsets, earplug headsets and many other styles and varieties.

As a word of experience, do your research and make what you think is the best choice. Something too heavy may hurt your ear if they are sensitive, but it may not offer the battery life you need... but if you need that much battery time.. make sure your ear can handle the headset design.

As with the rest of my guides, go ahead and fire me a email with any questions. I failed to mention any specific models as the market is always changing.