Car Charger, Lantoo Dual USB Car Charger Adapter(5V 3.4A output)with LED Digital Display Voltage Monitor,Low Voltage Alarm for iPhone 6s/6 /5s; Ipad Mini/ Ipad; Samsung Galaxy; GPS and MP3/MP4. 1. Smart Voltage Alarm: LED Display accurate car battary voltage,monitor your car's safety anytime.When the voltage is below 11.8V ,The "LOW" will light up. It is huge advantage for not car-mind guys who hopefully you don't run it completely down if you are trying to continue to charge your phone with the car turned off. And safety tool remind you of when to replace one battary in case stranded out in the boondocks. 2. LED Dual USB Charger: 2 USB Port 3.4Amp super fast charger and charge your Cellphones & Tablets simultaneously at full speed,Save time.And the LED clearly display the charging status. 3. Intelligent IC chipset: The current will automatically share while using, the smart chip to offer over-current,over-heat, short circuit protection. 4. Adjustable Head Pivot: the head with the LED Display is swiveling 90 degree to get the correct angle for ideal visibility.Moreover, with compact size, exquisite and mini design, easy to carry and save space. 5. Satisfaction Guaranteed: Lantoo promise to provide our customers with 12 months warranty from the date of purchase.Money back policy.