Manual calendar jumping (date, day of the week) Precise time flow Very stylish appearance Very accurate timekeeping Can be used as a gift for friends Press the button to turn the page, full of ceremonial feeling; The yellow hand indicates the alarm time,need to be manually adjusted,so as the week / month /date; Function:week / month / date / alarm clock Power supply:1 x AA battery(not included) Colour:Black/White Material:plastic Size:20x5x10.8cm Package Contents: 1 * Alarm clock (without battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.