*Usage method 1. Time / calendar / temperature alarm, press the set button to switch and view different items, like time, calendar, temperature alarm status 2. 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; 3. 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 - Year Month Day - exit; in the setting mode, do not press any buttons for 15 seconds to exit the setting automatically Specifications: *Material: Plastic *Size: 72 * 40 * 18mm Approx. *Battery: CR2032 button battery *Optional LED color: White, Green, Blue, red *Reminder: The mirror clock needs to be plugged into the USB all the time to be always on. The button battery is only the function of memory time Package Contents: 1*Clock 1*USB Cable 1*User Manual Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. *Modern and simple design, durable and practical *Mirror design *Mini and portable *Slow down your pace and enjoy life