Summary: Expected the sound to be crisp, and almost natural according to some of the reviews, but my brother indicated he could tell right off that I was on a bluetooth device. Though it was fairly good, the sound was a tad robotic. The sound level button was also an issue. Leaving it around the middle level, it sounded OK, but once you cranked it up, the crackle in the ear piece was very noticeable and I immediately turned it down a bit.
Summary: I bought two for our iPhones 4. I wear mine all day and for the first time I have no ear discomfort. As far as conversation quality goes; I use it with the top down driving off the highway and no one is the wiser. The bells and whistles are great. I stream music while I walk and little beats whisper into my head. The range is good too, for those times when I am charging my iphone and walk away from my desk. My Mrs. has given nothing but compliments on the A170.
Summary: For me, this Bluetooth headset works great. The pairing was very easy to do. I like that I can also listen to my Podcasts via the headset. Listening to music via this headset would be odd though since it is only mono sound (for obvious reason), but it worked fine. As with some of the reviewers, the volume control could be better executed.
Summary: I need to go to my iphone and change the call source to iphone and then back to the A170 which works sometimes. I have never had a headset that worked so poorly. I have had $20 units and whole the sound quality was not so great they worked.. This thing while the quality is great it malfunctions consistently!! I wish I had saved the documentation so I could send it back!!
Summary: As long as you don't expect to use SiRi, this headphone is pretty good. I have four of these and a M165, which is the same model in a different cover, It is light, long battery, very clear audio in your ear and physically very durable. Noise canceling is minor—it does some, but not a lot. The microphone quality is acceptable but not superior according to all people that I have ever spoken with. Siri is a different matter though.
Summary: Great sound quality and very comfortable. The selling point for me was being able to access Siri without picking up my phone. Push and hold for 2 seconds and she picks right up. Being able to answer or ignore with voice command is also a nice feature. So far I love it.
Summary: Almost 1 year of using it daily out of any technical problem, congratulations to the manufacturer, droping his attention that a wall charger 110 - 240 V 50-60 Hz is needed to reach the perfection of that mono bluetooth headset, go ahead
Summary: IT WORKS WITH MY IPHONE5!!! Based on that alone iI give it 4 stars. I'll have to save the 5th star if it keeps working and once I figure out other features. Right now I'm happy to be able to multitask and not be stuck holding my phone.