OOTDTY Features:USB power supply and low battery reminder:Built-in 1500mah lithium battery, equipped with one meter charging cable (without adapter, use 5V 1A or 2A adapter), energy saving and environmental protection. When the low battery icon appears on the screen or flashes abnormally, please charge the alarm clock in time. The LED light for charging is always on and will automatically turn off when fully charged. 2 alarms & 4 modes & 18 ringtones: 2 alarms can be independently set and controlled, 4 modes can be selected: Monday to Friday, Monday to Saturday, Monday to Sunday and only one day alarm, you don't need to worry about missing time. In addition, there are 18 types of ringtones for you to choose, you can choose your favorite ringtone to remind you.5 Levels of Brightness & Power Saving:5 levels of brightness, you can freely adjust the brightness according to your environment and your needs. After 8 seconds of inactivity, the alarm clock goes into power-saving mode and the screen will automatically turn off. Tap the top button to wake up the alarm. You can also freely switch between always-on mode and power-saving mode. Note: Always on mode consumes more power. Please try not to use this mode when it is not powered by USB., Night, Light Design: The upgraded digital alarm clock adds a design mood lighting that realizes the perfect combination of alarm clock and night light, supports infinite dimming, and can also be turned on and off separately. You can freely set the brightness time (5- 120 minutes), create a romantic and warm atmosphere for yourself. Snooze Mode:When the alarm sounds, press the touch button at the top to enter snooze mode. During this time, the alarm icon on the screen will flash and the alarm will sound again after five minutes. Press any button on the back of the clock to turn off snooze mode. Feature1. USB charging port, convenient for charging2. Night Light AtmosphereAdjustable Light Duration3. Time brightness and volume are adjustable4. Built-in 1500mah lithium battery, memory shutdown function (no need to reset the time after power off)5. Two sets of alarms can be controlled independently6. Support workday alarm clock and weekend alarm clock settings. Free choice of 4 modes (1-1, 1-5, 1-6, 1-7)7. 18 music ringtones to choose, music can be adjusted manually (4 files) maximum 120 decibels8. The brightness can be adjusted and can be adjusted manually9. Tap Snooze. When the alarm sounds, you can touch the top to snooze, the snooze time is 5 minutes10. Daylight time-saving function and low battery reminder11. Battery Status DisplayWhile Charging: Always OnFully Charged: OffLow Battery: FlashingSpecification:Optional Color: White, Black, Green, YellowProduct Material: ABSInter Power Interface: USB PortPlug: With USB Cable Without PlugBattery Capacity: 1500mahBattery: Built-in Lithium Battery, Rechargeable. Freely switch between constant light mode and power saving modeNote: Steady light mode consumes more powerWorking time:Time + ambient light is brightest - 15HCzas + ambient light is darkest - 185HHider time - 72HMamierer time - 660HComper ambient light - 16HNimirth ambient light - 190Hmedium brightness ambient light - 35Hambient light + time average brightness 34HHaverage time brightness - 450HRoume: application. 20x9x5cm/7.87x3.54x1.96inQuantity: 1 setNote:Transition: 1cm=10mm=0.39inNot retail package. Please allow 1-2cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Alarm Clock1 x User Manual1 xUSB Charging Cable (Other accessories shown in the picture are not included.)