Feature:5 in 1 Multi-Function.Built-inDigital Clock and Temperature Gauge, driver can learn the time andtemperature conveniently to arrange the driving time appropriately.There are 5 groups (0-9) number stickers, you can freely compose your own mobile phone numberLarge- LCD screen, you can clearly display the time, date and the second, visual effects at a glance.With blue luminous, you can easily learn the current time at night just one click.It can be installed and used in the car and office conveniently.Specification:Color: BlackMaterial: ABSQuantity: 1pcBattery: 1xCR2032 (Included)Size: As the picture showsFunction: Clock, Thermometer, Temporary parking card, Guide ball, Voltage TesterTime Setting:In the normal time state, pre and hold the TIME button for 3 seconds,then 12Hr or 24Hr flashes, indicating that the time setting state isentered.At this time, pre the UP or DOWN button to select the 12 or 24 hour display system.Atthis time, pre the TIME key to set the following items respectively:12/24 hours---seconds---hours-minutes-year---month-day-period----confirmexit.Pre the UP or DOWN key to increase or decrease the item respectively.In the normal time state, pre the TIME button once to switch to the month and date display state.Pre the C/F key to switch between Celsius and FahrenheitPackage included:1X Multifunction Temporary parking card