Recharge devices on the road with this Anker ROAV SmartCharge Halo car charger. PowerIQ technology identifies connected devices and optimizes power output, while Quick Charge 3.0 technology lets you recharge devices quickly. This Anker ROAV SmartCharge Halo car charger has built-in USB ports that let you charge up to three devices simultaneously. Compatible with most USB-enabled devices For wide-ranging use. Qualcomm Quick Charge 3.0 Up to four times faster compared to conventional USB charging. 3-amp output Delivers sustained power to your device. 3 USB ports Enable you to charge multiple devices simultaneously.