yk-w无线鼠标翻页激光笔五合一功能:1. 无线遥控功能―――WirelessPresenterfunction2. 鼠标功能:―――Moucefunction无线光电鼠标和轨迹球鼠标合二为一功能―――WirelessOpticalMouseatthedesktopandTrackballMouseintheair3. 激光教鞭功能―――LaserPointerfunction4. USB存储功能(可选择)―――Flashmemoryfunction(Optional)5. 电池充电功能―――Rechargingforbattery两节七号充电电池―――2pcsxAAA(Usingrechargingbatteries)