No software and PC programming required take just a few seconds to install and use - Instant controlling of Microsoft PowerPoint & Media Player - Main Function: Laser pointer function; Page up/down function - Compact design enables mobility of up to 15 meters from the laptop/PC while still maintaining a full navigational control of your presentations - Working on any computer with USB port (USB receiver dongle included) - Working voltage: 3V - Sleep current: 1uA - Built-in 630~670nm wavelength red laser pointer - Max output: - Powered by 1*CR2032 batteries (included) - 1 * English user manual included