The GM533U by Azio uses a Laser sensor, providing a DPI/CPI range of 800, 1600, and 5,000dpi. It uses a USB connection with a 1.5m cable. It weighs in at 134g up 164g grams with the cable, has Yes, 6 x 5g weights

Take control of the battlefield with AZiO's Levetron Gaming Mouse. The built-in macro programmable buttons makes for the perfect weapon to lay waste to enemies on the battlefield. Not only does it put hard-to-memorize or complicated commands at your finger tips, the macro keys can be programmed to do a whole sequence of key strokes which make preparing or waging battle a breeze. The 5000dpi sensor gives you the precise movements required to pull off complicated moves and the DPI switch can quickly adjust the sensitivity at the press of a button.