Feature •  33 Hot keys for office, multimedia, internet and    application hot keys •  Silent membrane key switches for quiet and easy    typing •  Unique scroll wheel •  Enchance F key function •  One touch solution for popular office, multimedia,    internet, and favorite applications Specification •  Key layout: 104/105/106/107/109 •  Hot keys: 33    -Office hot keys: Word, Excel, P-point, Calendar    -Internet hot keys: E-mail, Web home, My favorites,     Web search, Web refresh, Web stop, Web page     forward, Web page backward    -Application hot keys: My computer, Calculator, Sleep,     Power off, F lock, Log off    -Multimedia hot keys: Volume down, Volume up,     Play/Pause, Previous track, Next track, Stop, Mute     Clipboard hot keys: copy, paste, cut, mark,     application, close    -Function hot keys: Help, New, Open, Save, Replace,     Spell, Undo, Redo, Reply, Reply all, Forward, Send,     Print •  Connector: PS/2, USB, U+P •  OS compatibility: Windows 98 / Me / 2000 / XP / NT /     VISTA / Microsoft Office XP •  Dimension (LxWxH): 514*221*35MM •  Agency Approvals: FCC class B, CE, WHQL