Product of a good quality / price and very practical in the use of either a HTPC or a smartphone / Android tablet. What is unfortunate in this model is linexistence backlight sub functions (blue keys), for the rest it's perfectly lit and it is very convenient in the night. Problem-free installation for HTPC android however it depends on your model. For Xtreamer Ultra 2 there is a setting done prior to each use or update of OpenELEC nothing fancy but good. For a HTPC it will not replace your remote control but serve as a complementary tool to edit the library for example. Autonomy is also small but nevertheless I am very satisfied with my purchase. Great product to invest if you need a mobile keyboard and without cheap wire.