The 12 Volt charger has two USB ports which only one is needed. There is space for my cell phone USB charging cable and I needed no additional distributor.
Once I get my phone in the car and the ignition start the Jabra connects automatically. In my Belkin I had to always push the acceptance button.
Then I have two buttons for phone and music playback is leading to better handle. The lamp goes out for telephone usage even when I play about music.
I can connect two smartphones at the same time, here the works with the private and corporate mobile phone easily with me. I just do not know what happens when a call comes in on both devices.
And most important, the sound is a little better calls in the music playback and when, against all the callee understands me better.
The improved handling I find the charge for Belkin justified speakerphone and forgive 5 Stars.
The coupling with the phone is really easy.
Please note: In order to use the Jabra Streamer needed a car radio with AUX input / jack.