Summary: Pairing this K100 hands free with my iphone 5 was easy and quick. Took it out to the car, read the directions, made a call and it was very clear, in fact the person on the other end was surprised how clear it was. Haven't tried the FM feature yet. Making a voice activated call is easy as well, pressing the center button until two beeps are heard then speaking the name of the person you want to call, that easy! Overall I think I should've had this a long time ago!
Summary: Overall, a fantastic product. My only complaint is that unlike other Plantronics products I own, it does not tell you the battery life when it powers on. The battery life is very good however. I'm currently at 12 hours of active use time and haven't needed to charge it yet. Bluetooth setup is easy and effortless. I use it at work to stream music and find the sound is clear and the max volume is surprisingly loud.
Summary: I wasn't expecting much for the price, but it works great. I can play music through my fm radio or talk on the phone hands-free. . . just what I needed! I've used Plantronics products for years and this hasn't changed my mind about the quality of their products.
Summary: I would recommend shopping around for another blue tooth speaker for your car. I purchased this for my fiance so she was safe and in accordance with hands free laws.
Pros: Easy to Pair devices, long battery life.
Cons: Will only transmit 5 FM station choices, 88.3,88.7,89.1,89.5, and 89.9. If you do not have a radio station fighting with these FM stations than it might work for you. I live close to New York City and the FM stations are stronger than this devices broadcast.
Cons: This thing drops the bluetooth connection with my phone (htc Evo 4G) on about 1 out of every 3 calls. In the middle of a call, the speakerphone will just drop out, but the call stays connected. I've stopped using it since it is so unreliable. All other bluetooth devices work perfectly.