SwissGear Wireless Mobile Presenter w/Laser Pointer Mini USB Receiver snaps into the bottom of presenter to prevent loss 100-foot connectivity range - Integrated laser pointer - Easy USB Connectivity On/Off Switch - Slide Forward/Backward - Play/Pause - Escape Presentation - Black Screen PC & Mac compatible - USB 1.1 & USB 2.0 - Low power consumption - Uses 2 Coin batteries (included) Compatible with Windows 7, XP, Vista, 2000, 98/SE/ME, MAC OS X & above