The flip pen is a red laser flip remote control pen, and the LCD screen absorbs red light, causing the laser to not display, Fault analysis: The page turning pen and USB connector cannot be connected for use. It is necessary to re connect the page turning pen and USB connector. Operation steps: ① Press and hold the hyperlink key+page up key until the green indicator light starts to flash slowly. ② While the indicator light (green) remains flashing, quickly insert the USB receiver into the computer. ③ After the indicator light flashes for a few seconds, it turns green and stays on for a long time, indicating that the code has been successfully matched and can be used. size：132.7*12.3*22mm 【TELESCOPIC TEACHERS POINTER】 Includes a sturdy teacher pointer stick extendable enhanced visibility during presentations.Work on Traditional Blackboard, Electric Whiteboard, PPT, Large Display Screen, It's a ideal pointer stick for classroom, school educational or training course instruction 【TOUCH SCREEN STYLUS PEN】Designed with high sensitivity flocking tip. The wireless presenter crafted from gently, anti-slip ABS material for smooth interaction. Does better in anti-scratch protection and responsive interaction with the screen. Relax your fingers and get flexible clicking and smooth writing. Wireless Presentation Clicker with Pointer Stick,Rechargeable Presenter Remote Light Pointer with Screen Stylus Pen and Digital Display Rechargeable Wireless Presenter Remote with Screen Stylus Pen Pointer Stick, Presentation Clicker with Digital Display The flip pen is a red laser flip remote control pen, and the LCD screen absorbs red light, causing the laser to not display, Fault analysis: The page turning pen and USB connector cannot be connected for use. It is necessary to re connect the page turning pen and USB connector. Operation steps: ① Press and hold the hyperlink key+page up key until the green indicator light starts to flash slowly. ② While the indicator light (green) remains flashing, quickly insert the USB receiver into the computer. ③ After the indicator light flashes for a few seconds, it turns green and stays on for a long time, indicating that the code has been successfully matched and can be used. size：132.7*12.3*22mm 【TELESCOPIC TEACHERS POINTER】 Includes a sturdy teacher pointer stick extendable enhanced visibility during presentations.Work on Traditional Blackboard, Electric Whiteboard, PPT, Large Display Screen, It's a ideal pointer stick for classroom, school educational or training course instruction 【TOUCH SCREEN STYLUS PEN】Designed with high sensitivity flocking tip. The wireless presenter crafted from gently, anti-slip ABS material for smooth interaction. Does better in anti-scratch protection and responsive interaction with the screen. Relax your fingers and get flexible clicking and smooth writing. Wireless Presentation Clicker with Pointer Stick,Rechargeable Presenter Remote Light Pointer with Screen Stylus Pen and Digital Display