Shipping is free to Amazon Prime members or on order over $25. About this item: FFICIENT CHARGE: Dual usb cigarette lighter adapter enable 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; it's 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 plastic one. MULTIPLE SAFETY: It is multiple protection against over-current, overcharging, overheating and high temperature will guard the safety of your devices.