Brand Name: HUION Battery Included: No High-concerned chemical: None Origin: Mainland China Tablet Width: 139.2mm Tablet length: 186.6mm Interface Type: USB Pressure Levels: 4096 Screen Size(diagonal): 4" Package: Yes Type: Graphic Tablets Resolution Ratio: 5080lpi Type: Digital Tablets Certification: CE Material: Plastic Pen Technology: Battery-Free Electromagnetic Resonance Press Keys: 4 Customized Press Keys Dimension: 186.6 x 139.2 x 6.3mm Working Area: 121.9 x 76.2mm ( 4.8 x 3in ) Net Weight: 135g Pressure Level: 4096Levels Report Rate: 233PPS Sensing Height: 10mm Interface: Micro USB OS Support: Windows 7 or later MacOS 10.11 or later Support: Chrombook