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 Brand: E - 3LUE Application: Desktop,Laptop Color: Black,White Interface Type: USB Type: Wired 0.250 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