Feature: 1. The perpetual calendar function can be used when plugging in. The built‑in lithium battery is used for time operation during power failure, and the clock face is not displayed. 2. Easy to read, the large screen features enlarged numbers making it easy to read even in a long distance. 3. Modern and simple style design, the beautiful appearance fits perfectly with your room. 4. It can be hung on the wall to be used as a wall decoration or can be placed on the table. 5. Gregorian calendar as the same as 2001‑2049 years, the week is automatically corresponding, the month is automatically adjusted. 6. With time (hours, minutes, seconds), calendar (day, month, year), weeks, temperature display. 7. Generally used in any living room, bedroom, office, restaurant, hotel, coffee shop, work room, etc. Specification: Condition: 100% Brand New Item Type: LED Number Clock Material: Aluminium Alloy Frame Color: As shown in the picture Size: Approx.48x23x3cm/18.9x9.1x1.2in Weight: Approx.1884g/66.5oz Battery: 2032 lithium battery 200 mAh(Built in) Clock Accuracy: ≤ ±3 seconds/day. Package List: 1 x LED Number Clock1 x Charging Adaptor1 x USB Cable1 x English Manual Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.