Description A4 TECH -Bloody Q1100 Gaming Keyboard And Mouse MOUSE Metal X’ Glide Armor Boot: Over 300 Kms Report Rate: 125~1000 Hz/sec (4-level adjustable) Type: Wired Button Numbers: 8 Cable Length: 1.8 M Sensor: Optical Engine Connector: USB(2.0/ 3.0) System Requirements: Windows XP/ Vista/ 7/ 8 /8.1 / 10 or later KEYBOARD Convex Silicon Keys : W/A/S/D Hotkey：Multimedia hotkey Backlit：Neon Glare Water-Resistant：Double Secured Space-Bar: Screw Enhanced Connector: USB Cable Length : 1.8m System Requirements: Windows XP/ Vista/ 7/ 8 /8.1 / 10 or later