This device does exactly what it is built: reliably serve a PC / laptop from which a show is playing. - It has a laser pointer to designate on the projection Details - It works under Win8 with MS Office and Libre Office (= Open Office) - Simple Plug & Play function (of course you have to spend and the patience to wait until the device is installed and has established a connection) - Battery consumption is pending on the frequency of use of the laser pointer, and of course the size and number of presentations. The savvy user has therefore the possibility always one or two full replacement batteries.
The keys click when operating. The device devalue reason is simply nonsense. This interferes with a presentation not even except the inclined Auditorium is torn from sleep. Then you should revise its presentation but in general ...
