1. .1A USB Ports: .1A car charger adapter charges 2 devices simultaneously. Car charger adapter provides protection against overload, overvoltage, overcurrent, overheat and short circuit. 2. LED Voltmeter Display: This car charger builts in digital blue/red/green LED monitor, displays the real-time status of your vehicles battery for preventing problems caused by low , the light also makes quick and easy to find USB ports in the dark or at night. 3. Durable Material: The charge 3.1A USB car charger made of PC material, strong and sturdy, which will not be overheating at high temperatures, non-, good stability and more . 4. Easy Installation: This USB outlet is easy to be installed. "+" to positive pole, "-"to negative pole. Certificated by . With touch switch for easy using. 5. Broad Compatibility: The 3.1A USB outlet fits for 12/24V car, boat, marine, motorcycle, ATV, RV etc. Suitable for charging mobile phone, GPS, digital camera and other USB accessories etc. Input : 12V24V Output : 5V Output Current: 3.1A Working Temperature: -40-80 Colour:black+green light Material:ABS Package Contents: 1 x Motorcycle Dual USB Charger Socket 1set x Mounting Accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.