DUAL PORTS QC3.0 FAST CHARGING: Dual ports pump out 36W total. The car charger can charge two devices simultaneously at QC3.0 speed and charge from 0 to 55% in 35 minutes; providing 3x faster-charging speed to compatible devices. Please note: iPhone doesn't support QC3.0, however, this car charger can also charge iPhone quickly. ALL METAL BODY & SAFETY GUARANTEE: The upgraded metal cigarette USB charger will not be burnt-out, which is safer than the plastic one. Certified with multiple safety certifications, the double USB car charger has multiple protection against over-current, overcharging and will guard the safety of your devices. PLEASE NOTE: Benefit with the all-metal body, you may feel the metal shell get hot easier, actually, it proves the metal body does good in HEAT dissipation & safety. UNIVERSAL COMPATIBILITY: A universal dual USB car charger compatible with all Android and iOS mobile devices. The car charger adapter charges your mobile device at the maximum charging speed your device supports.