Detailed Product Description 2 in 1 RF wireless presentation laser pointerReceiver can slip into transmitterControl distance:15m433MHzMaterial: plasticSize:132*22*13mmBattery:1pc AAAOutput Power:class III,class IISystem: Windows 98/2000/ME/XP/VistaIt supports Word, PowerPoint, ACDSee,Acrobat Reader etcFor teaching, meeting, speech, training etc