... standar High quality TBL 031 EN USB IR Wireless green laser presenter FUNCTION: 1, GREEN LASER ... 2, PAGE UP AND DOWN Wireless presenter with Green laser IR technologyStorable Receiver2*AAA ... (no memory/64/128/256/512/1024MB )III Operation System Windows 98, Se, Me, 2000, XP, Windows ... (15.3*14*14cm Weight: 15g(Without battery) Operation System: Windows 98, Se, Me, 2000, XP, Windows Vista ...