2.4GHz Wireless Presenter Remote Red Light Pointer Rechargeable Presentation Clicker Wireless Presenter USB PPT Flip Pen White: Low Battery Indicator.When the battery is too low, the indicator light will be blue and flicker for a while.Adopting 2.4Ghz RF transceiver, it offers low power consumption and good performance,used widely in any kind of public occasions.Bright Red Light Pointer. A warm reminder for participants to catch each detail you speak.Remote Control. 100m remote control distance, over 200m red light range plus 360° control, enable you to give presentation at ease and be free of worry about distance.USB Receiver, Plug and Play. Compatible with USB 1.0, USB 2.0, USB 3.0.Wide Compatibility. Compatible with Window xp, Win 7/8/10, /iOS, Android, and Office series page-turning format files. Specification: Battery capacity: 200mAh Package weight: 52g / 1.83oz Item size: 130* 21* 12.5mm/ 5.12* 0.83* 0.49in Red light range: >200m Item weight: 24.5g/ 0.86oz Remote control distance: 100m Transmitting technology: 2.4Ghz RF transceiver Package size: 170* 55* 25mm / 6.69* 2.17* 0.98in Rated voltage: 3.7V Battery: Lithium battery Packing list: 1 * Presenter 1 * User manual 1 * USB cable Bright Red Light Pointer. A warm reminder for participants to catch each detail you speak. Wide Compatibility. Compatible with Window xp, Win 7/8/10, MAC/iOS, Android, and Office series page-turning format files. Low Battery Indicator.;When the battery is too low, the indicator light will be blue and flicker for a while. Remote Control. 100m remote control distance, over 200m red light range plus 360° control, enable you to give presentation at ease and be free of worry about distance. USB Receiver, Plug and Play. Compatible with USB 1.0, USB 2.0, USB 3.0.