This kind charging gaming keyboard and mouse features incredible backlit【FN+PAU】Switch light effect【FN+PGU】Light highlight【FN+PGDN】Light weakened【FN+←/→】Light deceleration/Light accelerationNote:The backlight will auto into sleep mode if you don’t use it for a while,and it will turn on when press any key.If you want to close the backlit,Long press FN+press PAU,the backlit color change until turn off The Multimedia Function Keys provides …