ขาย Sis Ppt ปากกาเลเซอร์ไร้สายควบคุมระยะไกล Pr-20 สีขาว ราคาที่ดีที่สุด

Sis PPT Flip Pen Wireless Presenter PPT Clicker Multifunction Electronic Projection Pen Laser Flip Pen Remote Control PR-20 WhiteDescription: This PPT presenter uses six axis gyro technology, gravity induction control PPT presenter pointer function. It is specially designed for wireless remote control computer directly and multimedia equipment, realizes the electronic document free page turning and random presentation. With air mouse function, using gravity sensor positioning, no longer need to sit in front of the permanent operation of the computer, you can easily switch between different files and playlists and truly reflect the wireless click, get unlimited communication. Features: One Key Operation Page turning, laser indication, full screen and other common functions are completed with one key, get rid of the remote control problem and provide excellent operation experience. Comfortable Hand Feel Fit the ergonomic design, convenient and comfortable to hold in the hand, it provides good hand feel. Low Voltage Indication Function The PPT flip pen is powered by a lithium battery. When the battery voltage is below 3.4V, the indicator will keep flashing when the flip pen is in the operating mode without the key operation. This phenomenon prompts that the lithium battery is running low, you need to charge as soon as possible. Sleep Mode Function When there is no button operation, the flip pen will go into the sleep mode, you can press any button to wake up the pen. This function helps to improve endurance ability of the battery, so you don't need to charge it  frequently, more convenient to use. Wide Compatibility The presenter can be suitable for the mainstream computer operating systems on the market. Plug and Play Easy to operate, plug and play. Specification: Model: PR-20 Color: Black/White(optional) Support system: Windows, Android, Linux, Mac OS Frequency: 2.402GHz-2.483GHz Effective control distance: About 10m Power supply: 3.7V (lithium battery) Operating current: <25mA Sleep current: <25uA Launch power: <0.5mW Item size: 13.5 * 1.8 * 1cm /5.31 * 0.71 * 0.39in(L * W * H) Item weight: Approx.21.7g /0.77oz Package size: 16 * 4.8 * 2.8cm /6.3 * 1.89 * 1.1in(L * W * H) Package weight: 75g /2.65oz Package List: 1 * PPT flip pen                                                                1 * Wireless receiver  1 * USB cable                                                          1 * User manual