Product Description Material: Acrylic+Plastic Display Screen Color: Blue Display Screen: Digital LED Power Supply: 5V/1A Battery: CR2032 Power Supply: USB (including USB cable) Function: Time Display/Alarm Clock/Nap Size: 24 * 9.4 * 4.2cm Packaging: 1 LED Digital Alarm Clock 1 USB Charging Cable 1 Watch Handbook 1. Modern design: This alarm clock has been selected in 12H/24H format. Press the+button for 3 seconds to set the 12 hour mode or 24 hour mode. The 24 * 9.4cm 3D LED display screen makes it easy to read at night and the time is clear at a glance, making it particularly suitable for children and the elderly.2. Adjustable brightness and night light: Three levels of brightness, freely adjust the digital clock according to your preferences. From 6pm to 6am, when you need a night light, the digital LED alarm clock will intelligently dim by 20%. This electronic clock is your best choice. Both methods are easy to place: easily installed as a wall clock with built-in keyholes or a desk clock with a fixed base. When traveling, it occupies very little space in the room or luggage. Our electric clock is also suitable for kitchens, hotels, dining tables, desks, offices, or bedside tables.4. Alarm clock and nap function: The multifunctional digital clock has the function of alarm clock and nap. And you can freely adjust your sleep time. This digital alarm clock is an excellent Christmas gift for children or teenagers.5. Energy saving and environmental protection: Ultra low power LED, low cost, even if you can plug it into a USB port, it only requires 5V. A practical USB connection can be used anywhere. Reminder: Lithium batteries (including) only have memory function, can be powered on, and can only be lit through USB (including).