Plug in Digital Alarm Clocks with Rechargeable Backup Battery for Bedrooms Living Room Study Loud Bedside Desk Clock with Memory Function Dual Alarm 3 Modes Weekends Weekdays Every Day for Kids Adults

【NOTICE】If you want the time display to stay on, you need to plug it in for use. When Only powered by the battery, the time display will automatically turn off after 15 seconds, click any button to activate the display screen. There are no restrictions when plugged in for use.
【Rechargeable Backup Battery to Save Money】Although this product needs to be plugged in for use. But it has a built-in rechargeable battery, so you don’t need to spend extra money on a 3AAA battery. When there is a power outage at home, it will automatically switch to battery power supply, and the alarm clock will also ring normally. You can short press any button to activate time display, but the screen will go out automatically after 15 seconds. Don’t worry about the alarm not going off when there is a power outage. Up to 30 days of battery life, suitable for outdoor use.
【10 Levels of Adjustable Alarm Clock Volume】We provide 10 adjustable alarm clock volumes, and you can adjust the alarm clock volume level you need by using “+” and “-” during the alarm setting process.