展开Our flame-retardant USB car charger comes with two USB charging interfaces supporting total 3.1A output (single USB max. output is up to 3.1A) to ease your time by charging two electronic devices simultaneously. Equipped with smart chip, it can automatically identify and optimize the charging current to speed up charging time. And it can provide short circuiting, over-heating, over-currents, over-charging and other advanced protections to ensure the safety of your devices with its in-built intelligent circuit. Additionally, it comes with a LED screen to conveniently monitor the car battery voltage in real time.Convenient Dual USB Charging Port - Coming with two USB charging interfaces supporting total 3.1A output (single USB max. output is up to 3.1A), our USB car charger can charge two electronic devices simultaneously to ease your time. Intelligent and Compatible Fast Charge - Equipped with smart chip, our USB car charger can identify different charging current needs of devices and optimize charging current to speed up charging time. Besides, it supports most electronic devices such as smartphones, tablets, cameras, MP4 players and GPS devices and can be installed on various DC 12-24v vehicles. Worry-Free Security Charge - Built-in intelligently-designed circuit, our USB car charger can provide short circuiting, over-heating, over-currents, over-charging and other advanced protections to ensure the safety of your devices. Real-Time Car Battery Voltage Monitor - Coming with a LED digital screen which displays the car battery voltage in real time to keep your car battery safe and driving safe. Reliable Exterior Design - Adopting premium aluminum alloy, zinc alloy and PC materials, our USB car charger is anti-oxidation, flame-retardant, abrasion resistant and durable.Brand - iMounTEKProduct Type - USB Car ChargerMaterial - Aluminum Alloy + PC + Zinc AlloyInput Voltage - DC 12-24VUSB Output - DC 5V/15.5W/3.1AWorking Temperature - 0℃-40℃/32-104℉Item Size - 3.3cm x 3.3cm x 6cm/1.3in x 1.3in x 2.4in (L x W x H)Item Weight - 25g/0.06lbsPackaging Size - 8.5cm x 4.8cm x 12.9cm/3.3in x 1.9in x 5.1in (L x W x H)Packaging Weight - 102g/0.23lbs1 x Dual USB Car Charger