Buttons: 6 buttons with scroll wheel.<br /><br />    Tracking systems: Optical.<br /><br />    The Max DPI: 3200DPI.<br /><br />    Ajustable DPI Switch: 1200DPI / 1600DPI / 2400DPI / 3200DPI<br /><br />    When connect with PC・ Colorful colors Alternately change.<br /><br />    Ultra-precise Scroll Wheel.<br /><br />    Optical technology works on most surfaces.<br /><br />    Ergonomically designed・ long-term use without fatigue.<br /><br />    Intelligent connectivity・ no need to code・ plug & play.<br /><br />    Built-weight iron・ feel comfortable・ mobile and stability.<br /><br />    Switch Life: 5 million cycle.<br /><br />    Size: 127(L) x 85(W) x 37(H)mm.<br /><br />    Weight: about 142g.<br /><br />    Compatible with Windows XP・ Vista・ Windows 7・ ME・ 2000 and Mac OS...or latest.<br /><br />    User for: The high-end players・ gaming professional players.