Product Description:Tri-color and 4-level adjust(blue、 red、 purple) backlit LED illuminatedSystem requirements:Spill-Resistant Design. Antiskid big support、Exclusive mechanical handle system、A million times tapping times;Fadeless laser carving characters、 cool light makes a wonderful experience!Fully Back-Lit Keyboard: With an LED under each cap、 It is a fully back-lit keyboard、 offering 4 levels of adjustable brightness via the Fn (function) + F11/F12 keys.Accessible Media Keys: With the Fn (function) + F1-F7 keys、 you can control your volume and media player anytime、 without having to minimize your current game or program.COMPATIBILITY: WINDOWS XP/VISTA/WIN7/WIN8.Non-slip design for the best gaming performances and comfortErgonomic gaming design for maximum comfort and slicknessHigh quality durable 10 million times key life design. Strengthened spacebar for maximum life and long hours of gamingOverheating of the keyboard can cause it to be less sensitive to type. If so、 please turn off the computer and remove the keyboard to let it cool off、 then line in the keyboard and turn on the computer.SHIPPING:ship your order within 24 hours once your payment is confirmed.DELIVERY:for the united states、 it will take around 8-15 days to arrive after shipping、 it depend your shipping address and customs clearance、 it will take more days to arrive europe countries.