... & Mouse (Left button, Right button and Middle button) & Trackball & 3mW Laser Pointer. Wireless intelligent connection, with wireless operation ... keys and multifunctional compound keys. Press Fn+Alt for trackball 90-degree flip. Laser-pointer with remote control function ... hours standby time. Snap-in USB receiver. Compatible with PC, laptop, tablet PC, Google TV, IPTV, PCTV, HTPC, Projector, etc ...