"Totally" silent (unless you paste the device to the ear what I recommend as the fingers, although it will not cut you may damage - even if it will make a "wakeup call "), steady base, it can be placed from anywhere besides one can orient the metal rod. Simple USB connection. Beware all comments in here as Amazon has created 1 page for X versions (the version of the purchaser is noted at the top of the comment and to found the photo of the desired article to top).
This version is equipped with a switch / power inverter. Bonus: it looks like a flower as soon as you fold it by the stem! What more ... My work colleagues are jealous.