Adjustable brightness with a clear and comfortable visual experience. The LED light automatically dims at 6:00 PM. The display remains on when powered via USB. In battery mode, the screen turns off automatically after 10 seconds. Snooze function: When the alarm sounds, press the snooze button to delay the alarm for 5 minutes. The alarm will repeat every 5 minutes until turned off. Snooze duration can be set between 1 and 60 minutes (default is 5 minutes). Digital clock with large 6.7-inch LED mirror display. Designed for simplicity and clarity, this clock is ideal for bedroom use. The modern LED display shows time and temperature in an easy-to-read format. Powered by USB cable or 3 AAA batteries (not included). Ideal for home or nightstand use. Suitable as a gift. For any inquiries, contact customer service for assistance.