The handset is easily connected to the smartphone bluetooth, and once connected, need to manipulation thereafter. Simply activate the Bluetooth on the phone for everything reconnects automatically.
There is a button on the handset using power button on / off of it (long holding of the button to turn on and off the handset) and a short press allows to take a call when our phone is ringing.
Level scope, one can easily leave the room, but go too far with the smartphone handset generates a loss in quality to the complete disconnection of the latter.
I regret that when the handset is connected to the smartphone, we can not respond with the phone (the handset that takes the sound and microphone function), so if the smartphone was with us but the other handset side of the room, we could win on appeal but it will either pick up the handset or disable bluetooth ...
When one wishes to call someone it will also disable bluetooth or take the handset to speak with the person.
Unlike the i500 version for galaxy s4 (which I also own), the charging cradle is fixed (no possibility to orient the phone so the screen is visible depending on the height at which the unit is placed) and does not have any horizontal adjustment (capable of producing a cover over the phone).
Overall, I am satisfied with this product that surprised those who discover it in our living room!