flying CLOUDS Ureka R400 2.4 GHz Wireless Laser Powerpoint Slide Remote Control Pointer Projector with USB Receiver Battery Indicator for Windows Mac PC brThis Laser Powerpoint presenter is a easy to use 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. brDirection for use: /brOpen the battery slot and remove the USB receiver inside. brurn on the power button on the left hand side of the remote brNow press the centre round button to check whether the laser light is functional. br Insert the USB receiver in the USB slot of your PC or Laptop and you are good to go Buttons & its functions: Left & Right buttons moves the presentation to previous and next slide respectively. Pressing the upper button makes the screen blank. 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. brPackage Contain: /br1x Remotebr1x USB Receiver (placed inside the battery slot)br1x User ManualbrNote: Battery not included in the package./