Features: 1Clear Display: The digital wall clock has a large number of hours, minutes and seconds, a week temperature display, and a digital tube display for the time 2Accurate Timing: The digital wall clock has an accuracy of less than or equal to plus or minus 0.3 seconds/day, with a black border, which is elegant and beautiful 3Plug in Use: The digital wall clock has a built in CR2032 210mAh button battery, which is convenient and practical for plug in use 42 Placement Method: The digital wall clock has a hanging hole and a table hanging design, which is safe and stable, not easy to fall, and can also be used on a desk 5Scope of Application: Study, restaurant, office, conference room, computer room, laboratory, school, hotel front desk Package included: 1 x Digital&nbspWall&nbspClock&nbsp&nbsp 1 x Doorbell&nbsp(Battery Not Included) 1 x USB Cable 1 x Plug 2 x Screw 1 x Accessories 1 x User Manual