ขาย ปากกาชี้แสงสีแดงไร้สาย 2.4GHz Ppt Clicker Usb สําหรับการเรียนการสอน ราคาที่ดีที่สุด

Fir 2.4GHz Wireless Presenter Presentation Red Light Pointer Pen PPT Clicker USB Remote Control for Meeting Teaching Lecture Features:  Wide Range of Applications. Can be widely applied in teaching, meeting, PPT presentation, etc., for more convenience. 2.4GHz Frequency. The 2.4GHz wireless presenter pen delivers max. 50m remote control distance, which is very convenient in presenting PPT or others, no need to worry about failing control of the PPT when you walk around the meeting room or classroom. Functions of Buttons. With buttons for controlling page up, page down, full screen(long press up button for 1s), black screen(long press down button for 1s), convenient to use. And by pressing the button, the red indicator is turned on to easily point out the major focus for listeners and let them follow your presenting steps by simply pressing the button. Small Size for Portability. Small sized and slim design make it just like a pen and comes with a portable bag for easy carrying, offering more convenience to teaching or meeting. Handwriting Function. Comes with a touch pen cap, which equips it with handwriting function. Plug & Play. Comes with a USB receiver, which allows plug and play, no driver required. Specification: Item: Wireless Presenter Frequency: 2.4GHz Remote Control Distance: 50m / 164.0ft (Max.) Wavelength: 650nm System Supported: for Microsoft, Windows 8/7/Vista/XP/2000, Mac OS Android Color: Black Battery: 1 * AAAA (Not Included) Material: ABS Item Length: 14.3cm / 5.6inches Item Weight: 22g / 0.8oz Package Size: 17.3 * 5.5 * 3cm / 6.8 * 2.2 * 1.2inches Package Weight: 84g / 3.0oz Package Include: 1 * Presenter 1 * USB Receiver 1 * Cap 1 * Bag 1 * Manual