100% brand new and high quality.<br />Mouse Name  MMR2 MMR4<br />Buttons: 6 buttons with scroll wheel.<br />Tracking systems: Optical.<br />The Max DPI: 3200DPI MMR2 white/black + MMR4 white/black . <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 /> Feel comfortable・ mobile and stability.<br />Switch Life: 50 million times.<br />Package Size: 15(L) x 10(W) x 5(H)cm.<br />Weight: about 165g 5g MMR2 white/black .156g 5g MMR4 white/black <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 />MMR2 Version mouse Cable have white and black two color・ random delivery・ depend on the actual spot inventory