Qualcomm Quick Charge 3.0 Certified: Premium Dual port Quick Charge 3.0 Charges compatible devices up to 4x the speed of conventional charges. Faster and safer charging with advanced technology. Quick Charge 3.0 port + Adaptive Charging port with dedicated 2.4A output. For quick charging to work, your mobile phone or tablet should support Qualcomm quick charging technology. Please check your device specifications. All Round Safety: ( Surge Protection/Short circuit protection, Single port current protection/Output over current protection, Temperature control ) - Total protection for you and your devices. Compact Metallic Build: Premium components with curved metallic construction. Mivi's car charger is one of the most compact 2 port USB car charges on the market, allowing for easy use on the go. Smart Charge Auto Detect Technology: Detects your device and charges it at its fastest supported speed. Mivi Warranty: We took immense care and used advanced technology to build a worry free product. But just in case you have an issue, this product comes with a one-year limited manufacturer warranty and amazing customer service..