Active Area8" x 5" Resolution5080 LPI(Line Per Inch) Report Rate230 RPS Pen Pressure2048 Levels Tablet ConnectionUSB Wireless 2.4 GHz/EF Tablet Power SupplyUSB or LI-ION Battery 1350mAH Communication RangeApprox. 20 meters Continuous OperationApprox. 30 hours Pen Battery LifeMinimum 4,000(AAA)hours ComplianceCE/FCC/CCC Power consumption Normal use:30mA Shutdown：0mA(switch to"OFF") Charing current：430mA OS Support Windows 8/Win7/Vista/XP/linux Wireless, Professional Tablet DesignHuion W58 Tablet is designed as a Cordless Tablet with a rechargeable LI-ION battery so that you can enjoy the intuitive control and natural feeling of working with a pen with no restrictions. It comes with a wireless USB receiver to connect to your computer, which means you can walk Anywhere up to 20 meters. Advanced Wireless Pen Technology To simulate traditional digital pens, the Huion W58 features 2048 levels of pen pressure sensitivity. Varying the pressure of the pen against the tablet can create variations in line width and opacity, which makes you feel as if you are drawing with a real pen. Versatile and Compact in a Small PackageThe reversible tablet works equally well for all kinds of users. Also, 5080 Lines per inch of Hand Input Resolution conveys you a clearer visual enjoyment, in the mean while, 230 Revolutions per second of Report Rate provides a more sensitive reaction.