Typewriter Keyboard Retro Steampunk Keyboard 104 Keys Anti Ghosting Backlit Keyboard Typewriter Retro Style and Round Keycaps for PC and Mac

Function key FN+F1=music FN+F2=Volume- FN+F3=Volume+ FN+F4=Mute FN+F5=Stop FN+F6=Previous FN+F7=Play FN+F8=Next FN+F9=Mailbox FN+F10=Internet explorer FN+F12=Calculator Backlight control: Press FN+SCROLL LOCK=Backlight color off function Breathing control:FN+HOME Start breathing function FN+"=+" and FN+"_-" was Adjust the speed of the backlight to breathe the speed, the default is the mid-range speed, divided into three grades, press the backlight to double the breathing speed, and vice versa by FN+"_-" LED Backlit: FN+PGDN: reduce backlits brightness FN+PGUP: increase backlits brightness Specifications: Net Weight: 1100g Dimension: 455(L) x 175(W) x45(H)mm Multimedia keys: 12 Interface Type: Usb Ergonomics: Support USB Cable Length: 180cm Package Included: 1 x K100 Gaming Keyboard (With Retail Packaging) System Support: Windows 10/Windows 7/ Windows 8/ Vista/ XP/ Mac OS...or latest.