EFFICIENT CHARGE: Dual USB cigarette lighter adapter enables charge two devices simultaneously at full speed with 2.4A in each USB port. With a total power of 4.8A, it works for all USB-powered devices. Please note: it does not support Qualcomm Quick Charge, the charging page WILL NOT show fast charge when charging.^ COMPACT SIZE: With tiny thumb-sized(Size: 1.7inch*0.9inch) body, it perfectly blends with most car cigarette lighter and sits comfortably with the edge of the outlet. Our smallest car charger yet; its portable and you can take everywhere.^ ALL METAL MATERIAL: The full zinc alloy body features scratch-resistant, nice in design, and long-lasting in use. High-quality material let your car charger always look like new. Upgrade metal car charger will not be overheating at high temperatures, which is safer than the plastic one.^ MULTIPLE SAFETY: It is multiple protection against over-current, overcharging, overheating and high temperature will guard the safety of your devices.^ WE CARE FOR YOU: Welcome to contact us if you have any questions or concerns. Our reliable Customer Service will be sure to reply within 24 hours and offer proper solutions for you.