A lightweight laptop that features a 14 inches HD WLED display, Intel-3 processor and Windows 8. Released late 2013, identified by model number Latitude 3440 (P37G/P28F).
Buttons sometimes are not the parts of touchpad (sensor panel) itself and located on separate board, for example, motherboard. You have to resolder the button micro switches if you're sure this is not a software issue.