This Poweradd car charger charges my phone faster than using my cars USB adapter. It has a 3.0 output, is very light weight and it can fit in my pocket. This is a portable on the go, like I always am type of charger. It has a metallic housing and fits in the palm of my hand. It also has buit-in safe guards that protects your device against excessive current, overheating,and over charging. Dual USB outputs.