The product can mount your mobile securely on your car while you are charging、 at the same time、 it has two USB charging ports、 one for 1A (cellphone)、 one for 2.1A (Tablet PC) 、 Also it can charge two phone at onceFeatures:Suitable for mobile phone / smart phone / PDA / MP3 / MP4/GPS、 such as Samsung iPhone HTC LG cellphone etc.Clamp arms to adjust for universal fitting for desired devicesAdjust holder horizontally or verticallyPlug and play、 Put it in car Cigarette lighter.Width of suitable devices is from 1.41inch to 3.15inch (36mm to 80mm) 1A/2.1A USBWhen you use only one USB port to charge your device、 the output current is 2.1A.When you use two USB ports at the same time、 the output current is 1A each.When you charge iPad with your cable、 only 1 USB port canbe used、Please do not use the other USB port to charge other devices at the same time.Note: Phone in the picture is not included!Package contents: 1*Car Cigarette Lighter+2 USB Charger Mount Holder