180 Degree Projection: 180-degree adjustable projection (from -90 to +90 degrees), allowing easy viewing of the time on the ceiling while lying in bed. Clearly displays the time within 30 feet in a bedroom. Features two levels of projection brightness. Press the "Projection" button to adjust the projection angle up and down across 180 degrees. 3-Level Brightness Settings: Offers medium and high brightness options, suitable for day and night use. Brightness can be manually adjusted or set to automatic mode, adapting to ambient lighting conditions to protect eyes and conserve energy. Memory Backup Function: Built-in backup battery (included) preserves settings such as time, alarm, radio, and repeat mode during power outages, eliminating the need to reset the clock. Easy Operation: Simply press the "PROJECT" button on top of the clock to activate the projection feature. Use the 12/24-hour button to switch between time formats based on personal preference. User-Friendly Design: Intuitive button layout allows for straightforward setup without the need to repeatedly press or hold buttons. Suitable for both younger users and seniors. Ideal for use in bedrooms, children's rooms, study areas, and offices. Specifications: Item Type: Digital Clock Material: ABS Weight: Approx. 192g / 6.8oz Product Dimensions: Approx. 19.3 x 6.5 x 3.2cm / 7.6 x 2.6 x 1.3in USB Port: DC Port Battery: 1 x CR2032 Button Battery (225mAh), included Package Includes: 1 x Clock 1 x USB Cable 1 x User Manual 1 x Battery