Search results: reduce screen brightness

if you are composing an important document while the laptop has reported a low battery, there is no power outlet around, then you will really be in big trouble. here we will guide

besides the new features and interface, ios 7 also creates some discomfort for iphone 5 and iphone 4s users after upgrading. specifically, the battery life dropped after upgrading

if you use the iphone a lot at night, and though you have enabled the night shift feature, your eyes still get tired when you look at the screen a lot. fortunately, you can still

in order to save battery power, you need to be aware of very small details, especially when there is not much battery left but you still have important things to use the phone.