From the manufacturer Fit Your Style The symmetrical shape of the GM30 is designed for comfort. This medium hand size mouse is favorable for both palm and claw grip style. Performance & Durability Incredibly fast & precise tracking is provided by the PixArt PAW3327 optical sensor, which supports up to 6200 DPI and 1000Hz polling rate. Combined with OMRON switches rated for over 20 million clicks, the GM30 can endure years of intensive gaming. Smooth Movement Using an elevated exit point for the cable, the GM30 avoids any unnecessary drag that the cable could cause on the mousepad. RGB Mystic Light U-shaped edge lighting with RGB Mystic Light perfectly displays millions of colors and over 9 effects.