Intelligent Voice Control Operate the clock with simple voice commands for hands control. This feature provides convenient, effortless adjustment of time display and settings without touching the device. Brightness Three brightness levels to choose from. The display remains easy to read in any lighting condition, from bright daytime to dark night. Supply Flexibility Power the clock with 4 AA batteries or a USB cable. This dual power option lets you place the clock wherever it suits you , without worrying about a nearby outlet. Use scenarios Bedside on a nightstand: use voice control to check the time or adjust display settings without getting out of bed. Kitchen or desk: keep track of time while your hands are busy, using voice commands to interact with the clock. Flexible placement: switch between battery power for portability or USB power for continuous use in areas with outlets.