Electronic Alarm Clock Transparent LED Perpetual Calendar Weather Temperature Humidity Display Item Type: Electronic Alarm Clock Material: ABS+LCD Battery Model: 2 x AAA battery (not include) How e: Time Setting: 1. After installing the battery, the screen flashes, press UP/DOWN to select 12/24 hour format. 2. Press SET to confirm and enter the hour setting, press UP/DOWN to select; press SET again to confirm and enter the minute setting, press UP/DOWN to select. Press MODE to confirm and exit the setting to enter the main interface 3. In the main interface, long press SET to enter the time setting mode, and the next setting is the same as point 2 above. Alarm Setting: 1. In the main interface mode, press MODE to enter the alarm clock mode (the screen displays ALM) 2. Long press SET for 2 seconds to enter the alarm setting mode, and set the mode hour→minute. 3. Press MODE to confirm the setting, then press MODE to exit and return to the main interface. 4. After pressing MODE, press UP to turn on and off the alarm clock. When the alarm clock is on, the alarm clock symbol will be displayed. Turn off or Turn on the Alarm Clock and Timekeeping: 1. In the main interface, press MODE to enter the alarm mode (the screen displays ALM). 2. Press up 1 time to turn on the alarm clock; press up 2 times to turn on the timekeeping; press up 3 times to turn on both the alarm and timekeeping; press up 4 times to turn off the alarm and timekeeping at the same time. 3. When the alarm clock is in the on state, the alarm clock symbol will be displayed; when the time signal is in the on state, the symbol will be displayed. Snooze Setting: 1. When the alarm sounds, press the DOWN button to turn on the snooze function; when there is no operation, the snooze function will automatically turn on after the alarm sounds for 1 minute. 2. When the snooze function is turned on, the alarm clock will sound once every 4 minutes, and the snooze symbol will flash at the same time. 3. When the snooze alarm sounds, press DOWN to stop the alarm, but the snooze function is still on; press any other key to turn off the snooze. Date Setting: 1. In the main interface, press the MODE button twice to enter the date display, and long press SET to enter the date setting mode. 2. Setting Sequence: Year→month→day. 3. Press the UP/DOWN key to adjust the date. 4. After the setting is completed, press MODE to confirm and exit the setting. Automatic Temperature/Humidity Adjustment: 1. The temperature and humidity on the screen are automatically updated every 20 seconds 2. In the main interface mode, press SET to switch between ℃/℉ (Celsius/Fahrenheit) units. 3. When the temperature and humidity update fails or exceeds the range, "-℃, --%" is displayed. Maximum/Minimum Value and Reset: 1. This product will record the maximum/minimum temperature and humidity. 2. In the main interface, press UP to display the maximum temperature and humidity, and the screen displays the maximum symbol.3. In the main interface, press UP twice to display the minimum temperature and humidity, and the screen displays the minimum symbol. 4. In the main interface, press UP 3 times to display the current temperature and humidity. 5. In the main interface, long press UP for 2 seconds to clear the maximum/minimum temperature and humidity records. 6. When the product is out of power, the temperature and humidity records will not be saved. Weather Map: 1. Including sunny, cloudy and rainy days. 2. Display the weather according to the change trend of temperature and humidity (not the actual weather, for reference only) 3. When the humidity is "--", there is no weather display.Size: Approx. 7.5 x 13.1cm / 3 x 5.2in