Property me the trackpad on the computer purchased in the living room, I have connected to my projector. I have previously used the cordless mouse from Apple, did work, but I did not find it that great permanently connected to the sofa fabric with the mouse back and forth to drive. The trackpad is processed first class and makes a very high-quality impression, as one is used to it from Apple. It is operated by two AA batteries (included). Connection via Bluetooth is very easy and fast. Battery life I find very long. With daily use, the batteries should last for about 3 months. Only for manual click with left and right mouse button, the trackpad should be on a solid surface, the sofa fabric or soft ground does not work. This bothered me, however, only the beginning, because you can program the trackpad so that a single tap of a finger is seen as a left click and a single tap with two fingers as a right-click, problem solved! Only alone disturbing only the rather high price, Apple's just ...