I use the Kinivo BTC455 now for several weeks and am fully convinced of the product. I use the Kinivo with a Lumia 830, once you've set up the connection it works perfectly. The reconnection has never been a problem and the music is played perfectly. Regarding the quality and volume of course it depends on the AUX interface from how the songs are played. The Kinivo is here somewhat better than to connect the phone directly to the auxiliary interface, but can also work miracles. The speakerphone works great for me. Voice quality is good and the partner at the other end understands me very well. All in all, the Kinivo a real alternative to built-in Bluetooth and for a good price.
