Power Point Presenter, Wireless mouse, Remote Control laser pointer CE&ROHS Logo Print or Engraved Specification:high ... .4GHz USB Plug-and-play ,No driver requiredLogo print available Control distance: over 12m Output Power:class II<1mw or class ... III<5mw Size:diameter:105(L)*45*(W)*17.5(H)mmUse 1pc CR2450 material:metal It supports Word, Excel ,Powerpoint ...