The power does not need to be reset after a power cut. Clear and pleasant voice broadcast function. Mute time feature helps provide a quiet learning environment for children, promoting better focus on study. High-definition large display for parents, clearly showing year, month, day, hour, minute, and second, convenient for long-distance viewing. Real-time temperature monitoring with automatic indoor temperature sensing to help protect family health. Name: LED Perpetual Calendar Electronic Clock Voltage: 220V/50Hz Applicable Scenes: Living Room, Dormitory, Dining Room, Bedroom, Office Power Cord Length: 1.2m Dimensions: 35.8 x 15 x 2.8cm Color: Black Font Colors: Red, Blue, Green, White Material: ABS Package Contents: 1 x Wall Clock 1 x USB Cable Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.