Main Features‎:‎‎- DPI switch position just below the button panel‎,‎ to avoid mistakenly press‎.‎ The DPI switching key is crisp‎,‎ rigid and very easy to find‎- Made of ABS material‎,‎ the surface is well grinded with a fine hand feel‎,‎ anti‎-dirt and not easy to leave fingerprints‎- Four stickers distributed in every corner of the bottom of the mouse supporting a antiskid function‎- Using the moderate hardness weaving wire with an anti ‎- jamming magnetic ring to increase the speed and stability of transmission‎,‎ and also to reduce the interference of the transmission cable‎- Using the Omron 7N Micro key which gives you a high quality using experience‎- M668 uses 3310 optical engine‎,‎ the mouse move smoothly without dropping frames‎- Six different dpi ‎(‎ 800‎-1600‎-2400‎-3200‎-4000‎-5000 ‎)‎ can be adjusted by one key‎,‎ easily adapt to different gaming rhythms ‎- Six different breathing light effects‎,‎ create dream‎-like visual experience Application‎:‎ Desktop‎,‎Laptop Color‎:‎ Black‎,‎White Interface Type‎:‎ USB Type‎:‎ Wired Package weight‎:‎ 0.287 kg Product Size‎(‎L x W x H‎)‎‎:‎ 13.00 x 6.80 x 4.00 cm / 5.12 x 2.68 x 1.57 inches Package Size‎(‎L x W x H‎)‎‎:‎ 15.50 x 11.00 x 4.70 cm / 6.1 x 4.33 x 1.85 inches Package Contents‎:‎ 1 x Gaming Mouse‎,‎ 1 x Bilingual User Guide in English and Chinese