2.4GHz Wireless Presenter Remote Red Light Pointer Presentation Clicker Wireless Presenter PPT Flip Pen with USB Receiver Black Low Battery Indicator.When battery is too low, indicator light will be blue and flicker for a while. 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 plus 360° control, enable you to give presentation at ease and be free of worry about distance. Stable Transmission. Adopting 2.4Ghz transceiver, it offers low consumption and good performance,used widely in any kind of public occasions. USB Receiver, Plug and Play. Wide Compatibility. Compatible with Window xp, Win 7/8/10, /iOS, Android, and Office series page-turning format files. Specification: Red light : >200m Item weight: 21g/ 0.74oz Package size: 170* 55* 25mm / 6.69* 2.17* 0.98in Transmitting technology: 2.4Ghz transceiver Rated voltage: 3.7V supply: 1 * AAA (Not included) Remote control distance: 100m Package weight: 45g / 1.59oz Item size: 143*19*16.3mm/ 5.63* 0.75* 0.64in Packing list: 1 * Presenter 1 * User manual USB Receiver, Plug and Play. 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. Stable Transmission. Adopting 2.4Ghz RF transceiver, it offers low power consumption and good performance, used widely in any kind of public occasions.