Specifications: Color: Red/Silver.  Material: ABS.  Connection: USB2.0.  Interface: Micro USB.  Size: 181mm*143mm*6mm.  Display Area: 6.0*4.0 Inches.  Pressure Sensitivity: 8192.  Resolution: 5080LPI.  Read Speed: 266 point/s.  Support system: Windows7 or higher, OSX10.4 or higher, Android 6.0 or higher.     Features: 1.Universal Compatibility Support connection with computer or Android phone/pad.  2.8192 levels of pen pressure sensitvity ofers a more delicate drawing experience.  3.Battery-free and wireless pen doesn't need to be charged, keep away the worry of battery.  4.6*4 inches compact active area, save the space of the desktop.  5.Configured with 4 customize hotkoys.     Package Included: 1 x Graphic tablet.  1 x Pressure sensitive pen.  6 x Replace the refill.  1 x Nib changer.  1 x usb line.  1 x User Manual