M9 Mini Wireless keyboard backlight English Russian Spanish French PortugueseAir Mouse 2.4GHz Wireless Keyboard Touchpad Handheld for Android TV Box PC1, battery version:Lithium battery version, it includes 1pc rechargeable lithium battery, it can use slow charger to charge it, can not use fast charge,it also can charge by usb cable2, how to turn on the backlight?each backlit keyboard has 7 types backlit.a,"Fn"+"F2" to open 3 types backlitb, "FN"+"F2" open backlit model,and then press "Fn", swipe left and right with your fingers Touch the lower part of the touchpad, it can switch 7 types backlit.3,how can i change the language?answer: you need to set your device's(smart tv/android box,ect) physical keyboard match with the keyboard that you buy.for eample h96 max android box:firstly, connect usb receiver to the h96 max,turn on keyboardSecondly, clink settings-Device preferences---more settings---System---Languages & input---Physical keyboard---2.4G Composite Device---SET UP KEYBOARD LAYOUTS---russian/french/spanish/Portuguese/EnglishPS:Frenchcustomsers can installAZERTY.appto your device directly on web or goolge play.Notice:there are many android tv boxes/ smart tvs in the world, the detail setting physical keyboard steps needs to ask your device supplier, if you set your device physcial keyboard layouts and supports third party physical keyboard,it 100% works.4,how to repair the USB receiver?Answer: insert usb to computer usb port, The distance between the USB receiver and the keyboard cannot exceed 1 cmpressing FN+F1 3 seconds.the yellow light not flash means connected.5,How to adjust the cursor speed ?Answer: Pressing FN+Speace to speed up and down.- Backlit Keyboard Languages Version (Optional)English/Russian/Spanish/French/Portuguese Versions- Wireless mouse 2.4G Wireless Connection Range: Radius 3 m- Mini QWERTY 92-key keyboard multimedia control keys and PCgaming control keys- The Air mouse cannot use on LG and Samsung TV( Smart TV)/Xiao mi box.- Fn+F2: Open or Close Keyboard (Backlight/ Backlit) or Change Backlight color- Fn+ Space: Speed up the mouse move- Fn+ F11: Full screen to browser- Fn+F1(RF): Activation keysSupport System:- Windows 2000.XP. Vista.Windows CE.Windows 7 Android- Mac OS X. Android 3.0- Linux (Debian-3.1. Redhat-9.0 Ubuntu-8.10 Fedora-7.0 tested)package include:1 x Wireless keyboard1 x Wireless receiver1 x User manual1 x Rechargeable lithium battery (include)1 x USB charge cable(only can use slow charger,can not use fast charge)