Features: Modern and simple Mirror design, durable and practical Mini and portable, easy to carry. Slow down your pace and enjoy life Usage Method: [Time/ calendar/ temperature alarm]: Press the set button to switch and view different items, like time, calendar, temperature alarm status. [Display mode]: DP-1 can switch time, date and temperature all the time; DP-2 can display time all the time, without switching; press set to switch temperature, then display temperature all the time, DP-3 can display time for 15 seconds, then switch; Display time in two ways: always display and power saving display, and you can press down the button to change the selection mode. [Time / calendar setting]: In the time display mode, press set 3s for a long time to enter the time setting mode. In the calendar display mode, press set 3s for a long time to enter the calendar setting. Time setting system (select 12 hours / 24 hours system) - hour minute - exit; calendar setting sequence - Year Month Day - exit; in the setting mode, do not press any buttons for 15 seconds to exit the setting automatically. Specification: Brand Material: Plastic Size: Approx. 72 * 40 * 18mm LED color: Blue Battery: CR2032 button battery (Included) Note: Due to the light and screen setting difference, the item's color on the picture may be slightly different from the actual color of the item. Please allow slight dimension difference due to different manual measurement. Thanks for your kindly understanding! Package includes: 1PC * Clock 1PC * USB Cable 1PC * User Manual