Concerning AGPtek perch is simply a breeze. You clip it the phone in the space reserved for this purpose, you will have, the mounted beforehand. It's pretty simple. The "jaw" that closes on the phone can be enhanced by an orange tip if your phone is thin and small so it does not move. The phone keeps in place either a small phone (a 4-inch) or larger (style PHABLET a 6-inch).
What I like in this boom is that it is all light. Light weight (169g only less than a smartphone), this weight allows it to be forgotten in the bag, it can be carried anywhere easily. It deploys up to 1 meter so that no one can imagine that it is the people in the picture have taken it and not a third party.
Perch PAIR easily, it charges just as easily. It is responsible for use in 1h 100h (and yes, a pole is never lit 24/24). Compared to other poles, it has an on / off button on the base while the button to take photos found easily accessible to the thumb when holding the pole. In addition, the handle of the pole is anti slip material. That's perfect. And even unfolded, all does not weigh too heavy and the photo is taken easily.
Ultimately a really light pole that, for the price, offers an excellent compromise between maneuverability, light weight and low price.