Description: Battery/plug-in dual-use alarm clock, multi-function LED clock/electronic clock, time/temperature/date display Support brightness adjustment: manual brightness can be adjusted in two gears. Say goodbye to mechanical alarm clock ticks when you go silent Multi-function: voice control function, snooze function, power saving mode, adjustable snooze time, alarm clock work day mode, night mode time adjustable Memory function: Powered by three AAA alkaline batteries (not included), or can be powered by an external DC 5V power supply. When the external power supply is cut off, the time and various settings remain unchanged, and there is no need to repeat the settings after the power is restored. (When only using dry batteries for power supply, the display can be turned on by voice control, and the screen will automatically turn off after 16 seconds) Made of high quality plastic, light and durable. The best gift for everyone, perfect. Can be used in bedroom, office, home and school Specification: Material: Plastic Size(LxWH): Approx. 16x2.5x6cm/6.30x0.98x2.36inch Package Includes: 1 Piece Alarm Clock 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!