SPECIFICATION Mouse Keyboard Q-ty of keys: 6 buttons Keyboard layout: ESN,ARA,RUS,ENG Resolution: 800/1200/1600/2400 dpi Anti-Ghosting: 19 keys Maximum frame rate: 4000 fps Q-ty of shortcut buttons: 12 Maximal tracking speed: 30 ips OS Compatibility: Win XP/Vista/7/8/10/11/ MAC OS X Maximum polling rate: 250 Hz Error-free running time: More than 10 million times Maximum acceleration: 8 g Interface: USB Wire length: 1.8±0.01m Wire length: 1.8±0.01m Weight: 1125±10g Dimensions(W×H×L) approx.: 475*200*37mm Dimensions(W×H×L) approx.: 123*68*40mm