... be built in flash 4.logo printing available 2.4GHz presenterIt is a great tool for PowerPoint presentations! ... transmitter and USB receiver.Function: 1, Laser pointer;2, Page up/down;4, Be built-in memory ... Feature:1, Mini receiver can be stored into transmitter;2, Integrative design;3, Warranty period: 1 year;4 ... ISO 9001 Approved in 2008 Integrative RF 2.4GHz wireless presenter--V890 RC laser pointer