1. Modern digital mirror alarm clock - no glare or any annoying sound will disturb your sleep, creating a quiet sleep environment. Specially designed mirrors are not easy to stick to dust and are easy to clean. 2. Digital alarm clock large screen - LED large screen displays large font, which is very easy to confirm the display time. The fashionable design makes it very suitable for desks or bedrooms. Level 3.3 adjustable brightness and automatic dimming - the brightness of the alarm clock can be adjusted through low-medium-high motion. It is also equipped with a sensitive light sensor to support automatic brightness adjustment according to the intensity of ambient light. 4. Dual USB charging and wired electronic clock - The alarm clock can work only when it is powered on via USB plug (5V 1A adapter is required, not included). The coin-cell battery is only used to remember the alarm clock settings when the power is off. Two USB chargingcan charge two devices at the same time. 5. Nap function - The nap button can help you turn off the buzzer easily without opening your eyes to prevent excessive sleep.