Specification: Counterweight: 8x2.5 Gram tuning weight Customize DPI Switch mode 1: 1000/2000/4000/7200/14400 adjusted via the buttons of the mouse Customize DPI Switch mode 2: DPI can be adjusted freely by ±100 from 100 to 14400 via CD settings FPS: 8000 Polling Rate: Up to 1000 Hz; switchable: 125HZ/250HZ/333HZ/500HZ/1000HZ Buttons: 10 (10 out of 11) are customizable Tracking System: Optical Actuation: 30g Interface: USB 2.0 full speed Working Voltage/Currency: DC5V / 100mA Switch Life: 800 million times Wheel Life: 120 million times Size: 4.9 x 3.2 x 1.5 inches USB Length: 1.8M braided-fiber cable Switch: OMRON gaming switch