The telescopic boom, once charged with a micro-USB input, communicates via Bluetooth with the mobile phone (tested on my part on Android 4.4). Pairing is a breeze. Then simply click on the button and tweet-tweet, the little bird came out, the case is in the bag, social networks are ready to welcome you!
The boom at its maximum extent just over one meter. His head is adjustable in all directions thanks to small plastic screw (do not abuse their use?).
The mounting system is very good and ensures that a sharp movement in the enthusiasm of the moment is not going to send him flying your smartphone to several hundred euros in the surrounding river. The device is indeed set on 3 sides with 'goulettes' and a reassuring spring mechanism.
The footprint as everything is folded is very small perch comfortable fit in a backpack.