About this item 【Crystal Clear Display with 6 Brightness Levels】This compact digital clock has a crystal clear display whose brightness can be adjusted in 6 levels, making it perfectly readable in any environment. Perfect for your bed, desk or nightstand. Note: the alarm clock can only be powered through the outlet. Batteries cannot operate the alarm clock; only serve as memory function in case of power outage 【Loud Alarm with 5-Level Volume Control】Wake up to the alarm volume you prefer from 65dB to 85dB. Customize your wake-up experience and start your day with the right tone 【USB C Alarm Clock with Memory Function】Universal compatibility with a USB-C port and a 2 x AAA battery backup ensures your watch keeps time and settings even in case of power outages, so you don't have to worry. (2 AAA batteries not included) USER-FRIENDLY CONTROLS ON THE FRONT - All buttons and settings are conveniently located on the front, making this digital watch easy to use for seniors, boys, girls, and boys alike 12/24H Format & Adjustable Snooze Function - Easily switch between 12-24 hour format. In addition, you can set the snooze time from 1 to 15 minutes, giving you the necessary flexibility. Note: To operate the alarm with the wire and plug in the package, the battery only has a memory function