Main Features:2048 Levels Pen Pressure; Resolution: 4000 LPIThree express keys – such as close current page， save current pageUSB interface， Plug & Play- don’t need to install external driver， very convenient A cordless pen likes a real paint brush- free paintCompact size and light weight， easy to carrySystem Requirement: For Windows 8/Windows 7/Vista/XP， For Mac OS X10.4 and aboveTechnology Electromagnetic DigitizerActive Area 4"×2.23"Hand Input Resolution 4000 LPIReport Rate 200 RPSPressure Sensitivity 2048 LevlReading Height 15 mm / 0.6”Supply Voltage DC 5VInput Current ＜60 mAPower Consumption 0.35 WOS Supported above Windows8/Windows 7/Vista/XP/Mac OS 10.4Interface Support MINI USBUSB Cable Length 150cmPackage:1 x Huion 420 Signature Pad 1 x Wireless Pen(with 2 programmable buttons， 1 AAA battery not included)1 x English User Manual1 x Driver CD1 x Glove(for gift)