Sunrise Simulation Wake Up Light - 30 minutes before your alarm time, light gradually brighten from 0% of brightness to 100% and the color will change from red light to white light when in sunrise mode. Sunset Simulation Sleep Light - 30 minutes before your sleep time, the sunset simulation light will be on at 100% of brightness to 0% . Alarm Mode + Clock Memory - Including 10 kinds of alarm sounds & 4 volume levels. The time and alarm settings are saved and restored even when the power is cut. Rainbow & RGB Modes & 10 Brightness Levels - You can choose your favorite color in rainbow RGB mode with one simple tap. And 10 brightness levels can meet your different demands. 4 Level Display Screen Brightness: You can adjust the brightness by touching,Tag-to-snooze Function - Just tap the back or top to sleep another 9 minutes. Pay attention to before you buy it 1.The wake-up light time display is only 24-hour format. 2.wake-up light alarm clock is powered by a USB Cable. (No adapters included) 3.The battery is only used for the time settings memory, cannot be used as the main power source. 4.Since the sunrise alarm clock is multifunctional, please follow the instructions carefully, and do not modify the lamps and replacement parts. 5.In the event that the unit malfunctions, unplug the USB cable for 5 seconds, then reinsert it. Package Included: 1 x Wake up light 1 x USB charging cable 1XInstructions Booklet Width: 150mm Shape: Geometric Weight: 260g Function: Color Changing Length: 197mm Motivity Type: Digital Type: Alarm Clocks Form: Single Face Diameter: 150mm Feature: Antique Style Screen Type: LED shape: Sea shell Characteristics1: Level 4 adjusts the light level Characteristics2: 7 light colors Characteristics4: Touch button Characteristics5: 1 amp current can be used Characteristics6: No need to match the head Characteristics7: USB connection Thank you for your interest in our products. If you have any questions, please contact us by email.