- No software and PC programming required、 take just a few seconds to install and use<br />- Instant controlling of Microsoft PowerPoint & Media Player<br />- Main Function: Laser pointer function; Page up/down function<br />- Compact design enables mobility of up to 15 meters from the laptop/PC while still maintaining a full navigational control of your presentations<br />- Working on any computer with USB port (USB receiver dongle included)<br />- Working voltage: 3V<br />- Sleep current: 1uA<br />- Built-in 630~670nm wavelength red laser pointer<br />- Max output: < 1mW or < 5Mw<br />- Powered by 1*CR2032 batteries (included)<br />- 1 * English user manual included<br />                                                                                                                                Dimensions: 3.46 in x 1.3 in x 0.39 in<br />Weight: 4.23 oz