... presentation pen in one of the 70 keys. 2.4GHz wireless USB receiver, the effective reception range of 10 meters, built-in ... modeling Beautiful lines, stylish, elegant, simple simple 7-in-one wireless laser pen, electronic pointer Keyboard, mouse, laser pen Trinity, ... display. Charge display. Battery is fully charged display. CAPS. System requirements: 1, Windows 2000/XP/VISTA/7 2, Linux Android ...