I was initially a bit skeptical about whether the charger delivers enough power for up to two devices, it did but then ordered yet. And I was not disappointed! The device fits easily into the cigarette lighter (this was not the case with another device from Belkin), hardly protrudes out and actually delivers enough power to my iPhone 4S and my TomTom navigation system at the same time being able to store. All I ask. I'm very satisfied!