Crystal Clear Display with 6 Brightness Levels: This compact digital watch features a crystal clear display with 6 brightness levels, making it perfectly readable in any environment. Perfect for your bed, desk, or nightstand. Tip: The alarm clock can only be powered by a power outlet. Batteries cannot operate the alarm clock; they only serve as a memory function in case of a power outage. Loud Alarm with 5-Level Volume ControlWake up with your preferred wake-up volume, ranging from a gentle 65 dB to 85 dB. Adjust your wake-up experience and start your day with the right sound. Plug-in USB C Alarm Clock with Memory Function: Universal compatibility with a USB-C port and 2 x AAA backup battery ensures your watch retains the time and settings even in the event of a power outage, so you don't have to worry. (2 AAA batteries not included) Easy-to-use front controls: All buttons and settings are conveniently located on the front, making this digital watch equally easy to use for the elderly, boys, girls, and children. 12/24-hour format and adjustable snooze function: Easily switch between 12-hour and 24-hour format. You can also set the snooze time from 1 to 15 minutes, giving you the flexibility you need. Tip: To use the alarm with the cable and plug in the package, the battery only has one memory function!