... 2.4GHz presenter 1.with AAA battery 2.CE,FCC,RoHS certificate 3.can be built in flash 4.logo printing available 2.4GHz ... transmitter and USB receiver.Function: 1, Laser pointer;2, Page up/down;4, Be built-in memory ... :1, Mini receiver can be stored into transmitter;2, Integrative design;3, Warranty period: 1 year;4 ... 9001 Approved in 2008 Integrative RF 2.4GHz wireless presenter--V890 RC laser pointer