Wacom Graphire4 6x8 USB Tablet ( CTE640S ) - Silver Pressure sensitive pen and tablet ideal for creative and business applications Battery-free digital pen offers 512 levels of pressure sensitivity for maximum control, two programmable side-buttons, and a pressure-sensitive eraser for easy fixes Rechargeable lithium polymer tablet battery provides up to 25 hours between charges Includes Adobe Photoshop Elements 3, Corel Painter Essentials 2, nik Color Efex Pro 2 GE Connects to Macs and PCs easily via USB connection