Strengths: very comfortable compared to many others I've tried and very clear audio and people I'm speaking to can't tell I'm using a bluetooth-the best one I've had so far

Weaknesses: none

Summary: I've tried several bluetooths and most were very uncomfortable and not nearly as clear as this. The price is great compared to the others I've had. I feel that this is a terrific bluetooth in all aspects. It's a great value.

Strengths: battery life, clarity sending and recieving. comfortable on ear (I forget I have it on).

Weaknesses: Charger is proprietary connector. Would prefer standard USB but I can live with that.

Summary: Great unit. Highly recommend it. I must have tried and tested about 12 to 14 different vendor's products (and returned them all) before I settled on this one. They only one I found even as good was the Voyager Pro model but that unit is about $100. For the price, this 520 model beats everything else hands down.

Strengths: This units sound quality is very good....and clear

Weaknesses: I have not found one yet

Summary: I am very happy with this headset, after 2 weeks of use, it started to have problems trasmitting but would still receive, I called the support line and had a new unit within a few days...I missed it but was happy with the service..would buy one again

Strengths: Clear reception

Weaknesses: ear bud takes some getting use tostill learning the one button control

Summary: This is my second bluetooth and I like this model far better than my Motorola, but that could because the Motorola model was much older. I am still learning how to use the one button control and have missed a few calls because of this. I would strongly recommend this product, it's a good bluetooth for the price!

Strengths: NO NOISE

Weaknesses: ASSEMBLEING STAND

Summary: I HAVE TRIED ABOUT 5 DIFFERENT TYPES OF HEADSETS, BUT THIS ONE IS THE BEST. I HAD NO PROBLEM KEEPING IT ON MY EAR. IT FITS JUST FINE. THE ONLY PROBLEM IS TRYING TO PUT TOGETHER THE CHARGING UNIT. WELL, I NEVER DID SO I JUST PLUG THE SET IN THE CHARGER AND PLUG INTO THE OUTLET.

Strengths: SOLID FIT NOISE CANCELLATION VOICE CLARITY SELF PAIRING WITH PHONE

Weaknesses: "DESKTOP STAND" IS A PUT IT TOGETHER YOURSELF DEAL!

Summary: EXCELLENT SOLID CONSTRUCTION. GOOD SOLID FIT IN EAR DUE TO SHAPE OF EARPIECE. SOUND QUALITY IS EXCELLENT. SELF PAIRING AFTER FIRST CHARGE IS A DEFINITE PLUS - JUST ADD THE PAIRING CODE TO YOUR PHONE. WHAT PLANTRONICS CALLS A "DESKTOP CHARGER" IS A PLASTIC AND RUBBER "STAND" THAT MUST BE TAKEN APART TO THREAD THE CHARGE CORD THRU IT AND THEN PUT IT BACK TOGETHER SO THE CHARGING CORD PRONG STAYS IN PLACE. IN REALITY, IT IS JUST EASIER TO PLUG THE CORD INTO THE HEADSET JUST LIKE YOU WOULD CHARGE YOUR PHONE!

Strengths: Very comfortable to wear, sleek design, good clarity, easy to connect to phone and easy to use

Weaknesses: adjusting the volume can be a little tricky at first

Summary: If you are looking for a good quality bluetooth headset to add to your cell phone, look no further than the Plantronics Voyager 520. Not only does it have a very sleek design, it also is very light and comfortable to wear. Most important, the sound quality and clarity is great with the addition of its noise cancelling ability. I highly recommend this item!

Strengths: Comfortable, firm fit. voice quality good.

Weaknesses: larger size.

Summary: I've tried headsets from Blueant, Jawbone, Motorola, and Plantronics. The 520 is by far the best one for me. Many of the others had fine voice quality and battery life, the problem has always been fit. This is the first headset that fits me perfectly. It does not have to stay snug in the ear canal, however does fit in enough for good sound quality and volume.

Strengths: Comfortable

Weaknesses: Sound quality and static

Summary: How did this bluetooth get such high ratings?? I get complaints every time I talk on it. I disconnect and go directly to phone, and all is okay, so it's definitely the bluetooth device. Noise cancellation is terrible, static is terrible, virtually unusable. I would NOT recommend this.

Strengths: Nice design, easy to link to the phone, light weight, great call quality, very comfortable.

Weaknesses: a little bit work to hook it to the ear.

Summary: Voyager 520 not only looks cool, but it has very good call quality and it's very light. The battery life is pretty good (3~4 hrs) and fully charges in about an hour. I had voyager 510 and that one has very good call quality too but a little bit more bulky. Voyager 520 headset is definitely up to par comparing to Voyager 510 and highly recommended to anyone who is looking for a quality headset.

Strengths: Tonal quality, easy to sync with my Blackberry. Generally pretty comfortable but I have short commutes so I use it for typicaly no more than 30 - 45 minutes at a time.

Weaknesses: Ear fit is loose and some times will move out of position.

Summary: Generally speaking I'm happy with the purchase and bought one for my wife. I like that it is easy to switch from left to right ear with adjusting being simple. Battery life so far has been good.

Strengths: Comfortable fit

Weaknesses: Cannot be heard

Summary: Very hard for people to hear me. I have to keep repeating. I turn the ear piece off and talk into the phone, they hear me great. I have turned the volume up as far as it will go and people just cannot hear me well. I get constant complaints.

Strengths: Excellent voice quality, easy pairing.

Weaknesses: A little bit heavy.

Summary: I read many reviews then bought this headset. It is really awesome. The sound quality is very good. Other people won't notice you are talking on a Bluetooth. I like its function of easy pairing and switching between two cell phones. What's more, it has long stand time and talking time. I would recommend it to my friends.

Strengths: Noise Cancellation, Easy to use

Weaknesses: Range

Summary: I bought this headset as a replacement for my Nokia. I have been ver happy with its call quality and ease of use. I would recommend this to any users. Thanks.

Strengths: It fits my ear really snugly and thus it endures a lot of activity. I can clearly hear the voice on the other end and vice versa. Very stylish, chic, and lightweight.

Weaknesses: Can't be too far away from my phone or else static will occur. Doesn't work the best in a windy condition. I don't think any bluetooth headset has really mastered that yet.

Summary: I've tried 3 other blutooth headsets and so far this is one of the best. Pairing with my Sony Ericcson 850i was a breeze. I would recommend this to other bluetooth headset buyers. In fact, I'll probably buy one for my boyfriend.