mini i8 wireless keyboard backlight backlit 2.4g air mouse remote control touchpad rechargeable lithium battery for android tv box

each keyboard included 1pc rechargeable lithium battery,only can use slow charger to charge,it can not use fast charge,it can charge by computer usb port. keyboard has 7 backlight,a,"fn"+"f2" to open 3 types backlight.b, "fn"+"f2" open backlight;press "fn", swipe left and right with fingers touch the lower part of the touchpad, open 7 types backlit. if you press fn+f1 by mistake, it will disconnect,you can repair it again
1,take usb out
2,press fn+f1 5 seconds
3,connect usb again( keyboard and usb distance not over 1mm)
it will work again pressing fn+speace to speed up and down.if the cursor moves not well,you can press fn+speace to adjust it. wireless keyboard connect by a 2.4ghz usb receiver.syi