Friendly Tips * If you have any problem during the use ,hope you could send message to seller service team firstly and we will try to help you in time LED Backlit Setting: Backlight key:ON/OFF FN+Backlight key :Turn on/off the Rainbow lighting breathing by pressing the backlight key. FN+Pageup:Increase LED lighting brightness FN+Pagedown key :Reduce LED lighting brightness FN+F1-F12 :To unlock different functions for each buttons Keyboard Specification Package weight: 720g Standard Key number: 104 Keyboard Size:440mm(L)x204mm(W)x34mm(H) System: Windows(PC with USB Port) / XP / Vista / Win7 / Win8 / Win10 / Mac OS /Chrome OS/Linux OS and other roperating systems Whats in the box? 1 x Mechanical feeling mixed Gaming Keyboard (17.3x7.9x1.2 inch) 1 x User manual * Warranty :12 months.
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