USB Powered: This bedside alarm clock is powered by a USB cable (adapter not included). The eco-friendly LED wooden alarm clock makes a great gift for you, your family, and the environment. Multi-Function: The alarm clock displays time and temperature, with 12/24-hour format options. Features include three alarm settings, three-level auto-adjustable brightness, loud speaker, USB power supply, silent (non-ticking) operation, and sound activation. Simple operation with only three buttons. Compact size ideal for bedroom or office use. Includes user-friendly manual. Large Dimmer Display & Sound Control: The clock automatically adjusts brightness: bright from 7:00 AM to 6:00 PM, moderate from 6:00 PM to 11:00 PM, and dim from 11:00 PM to 7:00 AM. Power-saving mode turns off the display after 30 seconds; any sound above 60dB nearby will reactivate the display. This feature can be disabled to keep the screen always on. Easy to Use: Designed with only three buttons for simple setup and operation. Ideal for children, seniors, and elderly users. Set up to three wake-up alarms. Updated version includes a louder speaker, suitable for heavy sleepers. Modern Design & Ideal Gift: Sleek and compact design adds a natural touch to any room. Perfect for travel, desktop, bedside, or office use. A thoughtful gift for kids, teens, and adults who need a reliable alarm clock.