1. USB extension cable, the product comes without charger, so it is necessarily compatible with your devices, similarly an extension cord is compatible with either a lamp or iron.
2. There is a gorgeous "adjustment dial" on the back of the base .. it just serves to rotate the micro-USB plug back and forth and provides no lock: you can both rotate the microphone jack -USB directly by hand.
3. There is no retention tab on the front of the support: the device you simply load is retained by its USB port, which is ABSOLUTELY not made for it (this is already true for a smartphone , imagine a 10-inch tablet retained by the USB port).
3 Bis. Speaking of 10-inch tablet, the medium lacks a bit of width.
And last, but this is a detail compared to the previous points: the USB cable is attached to the station. No way to use a shorter cable if you place the support near the charger, it will make do with the long thread of 1,80m (which can also be an asset when you do not place the bracket next to the charger).
All this for the modest sum of 40 euros!
Seriously: there are excellent products from Belkin, but then I do not know what went through their heads.
Erwann on Amazon.com