When evaluating the audio quality and power management of laptops, one key feature to consider is the presence of a backlit keyboard. A backlit keyboard illuminates the keys in dark environments, allowing users to continue typing without having to look for individual keys. In this regard, both the Asus E410 and E410MA offer a backlit keyboard for improved user experience. The brightness level can be adjusted according to personal preference, providing an optimal typing experience regardless of ambient lighting conditions. Additionally, the inclusion of a backlit keyboard eliminates strain on the eyes as it reduces eye fatigue associated with prolonged use in dimly lit environments.