Wireless technology: RF 2.4GHz - Wireless range: up to 15 meters - Laser: Class II - Max output:<1mW - Laser distance:>100 meters - Wavelength:650nm - Battery: 1 AAA battery - Working voltage: 1.5V (Transmitter) 5V (USB receiver) - Dimension:140x24.5x17mm - Function: page up/down, play slides, black screen, vol+/-,tab, enter,alt+tab SUPER LONG RANGE RF 2.4G technology, up to 15 meters wireless range. OMNI-DIRECTION Navigate the PC from any direction wirelessly POWER SAVING Auto standby, deep sleeping and low-power LED alert ULTRA LIGHT Compact design, ultra-light, easy to operate and to carry EASY CONTROL Easily navigate the page up/down, play slides, black screen, vol+/-, tab, enter, alt+tab