For mouse.
The interior is, as with all BT devices, very simple. BT start on your tablet, turn on mouse press Connect button and already the two devices are connected. This is a one-time setup, you have to not constantly make new.
The mouse has a total of 4 buttons plus scroll wheel. The rear side button appears to be pre-assigned by Android, by press this button you end up back on the home page of the tablet (screen 1 in the Launcher). The scrolling speed is pleasant and smooth. It can be, according to the description, and the DPI resolution mouse change (800/1200/1600), which I have not yet tried, because the mouse for my needs reacts fine enough.
All in all, the mouse worth every penny and increases productivity for me on the tablet.