Combine multiple sets of shortcut keys, while taking into account practicality [FN+F1=Music] [FN+F2=Volume-][FN+F3=Volume+] [FN+F4=Mute] [FN+F5=Previous Track] [FN+F6=Next Track] [FN+F7=Play/Pause] [FN+F8=CD Stop] [FN+F9=Web browser] [FN+F10=Mailbox] [FN+F11=Computer] [FN+F12=Favorites] [FN+scrlk=Turn on/off backlit][FN+pgup=Brightness +] [FN+pgdn=Brightness -] Product Parameter Keyboard Model: LT600 Wireless gaming office keyboard and mouse Material: Brushed metal panel Keyboard Size: 435x133mm Button life: about 10 million times Technology: Membrane Keyboard Mouse response rate: 250Hz Mouse working current: <7MA Mouse size: 124*66mm Charging Time:2-3 hrs to full charge(Can be used while charging) Charging Wire: 1.5 meters Use type: Competitive game/ office entertainment More Features:26 keys anti-ghosting,Spill Resistant and Dustproof Support system: WinME/Win2000/Win XP/Vista/Win7/Win8 etc After-Sales Service Every products in our shop has undergone several strict quality tests,please purchase it at ease. But if meet any questions or suggestions,please feel free to Contact Us,Our JieruiDeng team will do our best to provide you right solutions.