E-3lue Cobra EMS109BL USB 2.0 Gaming Mouse, Blue
Specification:- Current: DC 5V  5%- Interface: USB 2.0- DPI: 400/800/1600- IC Chipset: OI 3509- Frame Rate: 4000 Frame / sec- Acceleration: 15g- Size: 128.6*64*39.2mm- Weight: 130g  5g- Buttons: 5 buttons with scroll wheel- Micro Switch Life: 3,000,000 times- Scroll switch Life: 500,000 times- Working Temperature: (-15) to (+45) Celsius- Tolerate Humidity: 90% - 95% RH- Compatibility: Windows 98 / 2000 / ME / NT / XP / win 7