TechTest USB Wireless Remote Control Laser Presenter Powerpoint Ppt This Laser presenter is a easy to use presenter which fits easily into hand. Its compact size makes it easy to carry anywhere and everywhere. The buttons are placed at some distance from each other which makes it easy to operate. It comes with USB receiver that is plug and play which means that you don't have to install any drivers to run the laser presenter Direction for use: 1. Open the battery slot and remove the USB receiver inside.  2. Insert the battery and close the battery slot.  3. Turn on the power button on the left hand side of the remote 4. Now press the centre round button to check whether the laser light is functional.  5. Insert the USB receiver in the USB slot of your PC or Laptop and you are good to go  Buttons & its functions: 1. Left & Right buttons moves the presentation to previous and next slide respectively.  2. Pressing the upper button makes the screen blank.  3. If you want to toggle between slide show and normal mode then press the lower button.   We would suggest you to go through the manual carefully before using the laser presenter.   In the box: 1x Remote, 1x USB Receiver (placed inside the battery slot), 1x User Manual.