Summary: With other devices, I've always had a hard time hearing on them (I don't have a hearing problem). With this device, I never get frustrated that I can't hear the other person. The comfort was really good, too. It fell out of my pocket on the way to my car yesterday and needless to say it was run over and now it's barely working. So, I have to get another blue tooth and I won't hesitate to get another Sound ID 510.
Summary: I use this while biking so I can hear out of one ear for traffic. This headset works extremely well. The sound is awesome. I use it for both music and audiobooks and the music sounds great - even for one ear. The pass-through mode is a little too sensitive for bike, but works well for other situations once adjusted. This stays in my ear very well and have not had any issues with it coming loose or moving around.
Pros: Light weight, sound quality is perfect, music sound very good and the talk time is six hours which is longer than Jawbone, blue ant, and plantronics. I love the App>
Cons: Not really a con because I get email updates, but when the I Phone has a firmware update the 510 needs to be updated as wel. I guess if you want to use an App you have to get the updates, it does only take four minutes or so.
Excerpt: I updated my phone once and I accidentally deleted the earprint app, thankfully it’s available for free at the app store. If you’re a consummate caller and the bulk of your mobile usage is spent on making/answering calls, then owning a state-of-the-art headset like this will motivate you to call even more. The price though is a bit steep at 120 dollars. A good thing I got it free. Hence, I absolutely recommend it.