XP-Pen Star04 9 x 6&rdquo; Graphics Tablet Drawing Pen Tablet with Rotary Switches Express Keys & 8GB Build-in Flash Memory(Black) The Passive stylus is battery-free and therefore does not require charging. It is designed to have a big impact on the user's creativity. Not on our environment. The Triangle design makes it comfortable for drawing/writing similar to a real pen. You must activate the one-click toggle function when installing the Driver to enable the Stylus' Pen/Eraser toggle. Features a Multi-function rotary switch with a Maximum support of 9 individual combination express keys. The express keys are available for you to customize based on your own preference. Build-inToshiba8GBhigh speedflashMemory, the quality is reliable. Build-in driver, CD Driver unnecessary, portable and easy to install on any PC or Mac. The stylus utilizes 2048-level pressure sensitivity, which creates multiple variations in line width and shade of color (heavy/light). 9 x 6 Dimension, Customizable driver makes it possible for both right and left hand usage. Compatible with most computer systems and software, such as Photo-shop, Painter, etc.