Dimmable Digital Alarm Clock- While charging, the LED screen is always on and automatically adjusts the brightness in 3 levels for different time periods. You can also adjust the brightness manually in 4 levels. The large LED digital display gives you a clear and comfortable visual impression. 2 Alarms with Snooze Function- You can set 2 alarms in one day to plan your time appropriately. Both alarms have an independent switch that is easy to set. The snooze function allows 5 extra minutes of sleep. There are 13 different music tones available. Dual Power Supply- Included in our alarm clock is a USB charging cable for power supply and a built-in lithium-ion battery to save the clock settings in case of power failure. (Attention: To charge the alarm, just plug in the USB port or ONLY the 5V/1A and 5V/2A adapter.) Multifunction LED Alarm Clock- The digital alarm clock is with time, alarms, temperature ( /), AM/PM, 12/24 hours and low battery indicator. The extra-large LED display features enlarged numbers that make it easier to read, even over long distances. Modern Design & Mirror Surface- The modern LED alarm clock features a mirror display and looks aesthetically pleasing with its elegant design, but it can also be used as a mirror if needed. A perfect table clock for living room, bedroom and office. Manual brightness setting The travel alarm clock has 4 brightness levels with first-class lighting quality. You can select the most comfortable brightness for your eyes by touching the top "SNOOZE/LIGHT" button. Automatic brightness adjustment Automatic soft backlight with light sensor during charging. 3 levels for different periods. This alarm clock not only saves electricity, but can also be used as a night light. Voice Control Function Any tap and sound above 90dB in close proximity wakes the LED alarm clock. The display will turn off automatically after 8s, which won't disturb you while sleeping at night. Specification: Shell material: ABS Volume: 3 levels Charging type: USB cable Input: 5V 1A Product size: 145 x 65 x 32mm Product weight: 165g