Laser gaming mouse has maximum tracking power for precision navigation Weight tuning system lets you modify total weight with four 5g mini weights to enhance mouse control 7 programmable buttons for strategic assignment of macros, profiles, keyboard keys, media controls, windows functions, etc. 8200 DPI for PC, for pixel perfect accuracy Harmonize comfort and gaming performance through 3 sets of interchangeable side panels Heavy-duty 10 million click lifecycle 256K built-in memory Plug and play on different PCs storing 6 profiles, macro assignments and muscle memory achievements http://www.amazon.in/Gamdias-Erebos-GMS7510-Laser-Gaming/dp/B00NR6V4I6