Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Material: ABSCase Color: BlackDual Color Display:Red and Red， Red and Green， Red and BlueDisplay Diameter:4.7cm/1.8inchBody Diameter:2cm/0.8inchBody Length:4cm/1.6inchThickness:2.2cm/0.9inchVoltage: 12V/24VOutput Voltage: 5.0VMaximum OutputCurrent: 2.1AMeasuring Range:-9~80CFunctions:Digital Thermometer-9~80C temperature measurementDigital Voltmeter，simply plug into cigarette socket， instant confirmation of batteryvoltage.Car Mounted Chargeryou can use it to charge mobile phone.Low power consumptionhigh light display.Package Content: 1 x 3in1 Car Thermometer VoltmeterNote: Due to the difference betweendifferent monitors， the picture maynot reflect the actual color of theitem. We guarantee the style is thesame as shown in the pictures， butnot the same performance ondifferent bodies as on the model.Thank you!