Car Charger - JEBSENS - 4in1 3.1A Fast Dual USB Car Phone Charger, Voltage Meter Monitor USB Car Charger for Smartphone with Blue LED Voltage Amps and Internal Temperature(Fahrenheit) Display - 15W FAST DUAL USB CHARGING PORTS - Combined 3.1 amps; 15W; uses smart technology to ensure each device pulls the right amperage. Dual USB car charger is powered by the vehicle's cigarette lighter. OVER-CHARGE PROTECTION  The mini USB car charger is auto power off when input/output is greater than safety current, protects against over-heat, over-current and over-charging LED DISPLAY - LED digital luminescence tubes; Display cycles between internal temperature (Fahrenheit), device's charging current, and the voltage of the vehicle's car battery. (Note: When using the device to charge, it display the charger's temperature instead of the internal temperature of your car. ) The LEDs are bright enough to read the display without being a distraction while driving. New updated version (ASIN B01N00I4TM) with LED Voltage & Amps Display only. SPECIFICATIONS - Input: DC 12V - 24V, Output: DC 5V/3.1A, 15 W, Conversion efficiency 95%, Measuring range: Voltage 5V-25V, Current 0 - 3.1A, Temperature -4 to 176 F PACKAGE INCLUDES: 1 x Jebsens 4in1 Dual USB Car Charger with LED Display. (Charging Cable NOT included) 1 Year Guarantee provided by Manufacturer. Money Back Guarantee from JebsensDirect. Need a Car Mount? Check out the No.1 Rated JEBSENS CA02 Magnetic Air Vent Car Mount (ASIN: B0144AX6WK) - Enjoy hands free driving!