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 Tester Time Setting:In the normal time state, press and hold the TIME button for 3 seconds,then 12Hr or 24Hr flashes, indicating that the time setting state isentered.At this time, press the UP or DOWN button to select the 12 or 24 hour display system.Atthis time, press the TIME key to set the following items respectively:12/24 hours---seconds---hours-minutes-year---month-day-period----confirmexit.Press the UP or DOWN key to increase or decrease the item respectively.In the normal time state, press the TIME button once to switch to the month and date display state.Press the C/F key to switch between Celsius and Fahrenheit Package included:1X Multifunction Temporary parking card Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.