... makings fastidious, the damping properly.Some chargers, it is very tight to use it at first, inserted inconvenient.Some of them are very ... a shockproof spring piece inside of the USB socket,so it is more stability and accessibility.Specifications:USB Car Charger 5V ... by intelligent card, don't backflow, don't overcharge. 8.It is suitable for any digital products such as iPad, iPad ...