wireless presenter with laser pointer (1)Page ... up/down (2)USB flash memory: 0-32GB (3)RC distanca>15m (4)CE&ROHS usb rc wireless ... presenter with laser pointer1.ComponentTransmitter 1 Receiver 1 Battery ... Lecture,Meeting,Astronomers,Military,SOSLoge Printing or laser marking 7.Product Colororder:black, silver, ... usb rc wireless presenter with laser pointer