Feature:<br />    Buttons: 7 buttons with scroll wheel.<br />    Tracking systems: Optical.<br />    The Max DPI: 5500DPI.<br />    Ajustable DPI Switch: 1000DPI(Red Light) / 1600DPI(Green Light) / 2400DPI(Blue Light) / 3200DPI(White Light)/5500DPI(Orange Light);<br />    Ultra-precise Scroll Wheel.<br />    Optical technology works on most surfaces.<br />    Ergonomically designed・ long-term use without fatigue.<br />    Intelligent connectivity・ no need to code・ plug & play.<br />    Built-weight iron・ feel comfortable・ mobile and stability.<br />    Switch Life: 5 million cycle.<br />    Size: 127(L) x 85(W) x 37(H)mm.<br />    Weight: about 140g.<br />    Compatible with Windows XP・ Vista・ Windows 7・ ME・ 2000 and Mac OS...or latest.<br />    User for: The high-end players・ gaming professional players.<br />Package Content:<br />    1 X Gaming Mouse(without retail package)