Notice: The brightness of the display and light in dynamic colors can not be turned down too low. Please discretely to purchase if you are sensitive to light while sleeping, thanks the cooperation. Worry-Free Warranty: 18-Month full refund and replace warranty and Life-Time free user support. Any questions please feel free to contact us via email, we will answer you within 24 hours. 12/24 Hour Time Format: One button easy to switch 12/24Hr time format. One Switch button for manually DST function. 9 Mins Snooze: Extra large snooze button can help you to get 9 mins nap up to 9 times in the morning. Battery Backup Function: 2 AAA batteries(not included) backup function helps to preserve time in case of power outage. Alarm Clock with 2 USB Charger Ports: The bedside clock is boasting a Type-C and a Type-A USB ports to support DC 5V/1A Standard output, which can safely charge your bedside digital devices. Bottom Atmosphere Light: Featuring a 8 color modes night light, this alarm clock creates a soothing ambiance in your room, perfect for kids, teens, and adults alike. Large RGB Rambow Display: It is not only a large LED digital clock, but also a dynamic RGB rainbow clock, you can easily set the display to your favorite color mode. Super Loud Alarm Clock: 90-110DB extra loud buzzer alarm, which is suitable for heavy sleepers, adults, seniors and teens. Designed for heavy sleepers: This vibrating alarm clock with a powerful 3-watt bed shaker is perfect for heavy sleepers, deaf and hard of hearing to put it under pillow.