Based on feedback from the performance gaming community,giving an enthusiast-class gaming mouse with great accuracy, responsiveness and performanceAdvanced optical sensor: It precisely translates hand movements on-screen for more accurate targeting Designed with feedback from performance gaming enthusiasts: Gain enhanced accuracy and responsiveness in a lightweight designBlue Customizable Lighting: Customized lighting colors to let you feel cool at any time any environmentDurable and lightweight: Maximum gaming comfort and durable buttons tested to a 20 million click lifespanPerfect for Windows 8, 10, Windows 7, Windows Vista and Windows XP. Size: 125 x 85 x 40 mmWeight: 90gOptical type: Red waveAdjustable DPI: 500/1000/1800/2500Polling rate: 250HzButtons: 5Maximum Acceleration: 20GFrame Rate: 3000 Frame / secWireless type: 2.4GPacking Content:1 x E-3lue Mazer II wireless mouse(the battery is not included) Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.