For power supply of 3 devices in the car the Nonplus Ultra. Good thing is that can be used the original power supplies of the devices. Navi and mobile are supplied optimally with electricity. An additional USB jack with 1 Amp. But you should be careful, that can provide the required power, the car switched outlet. Notes in the operating instructions must also be observed. The maximum current value of the car outlet must not be exceeded. My Recommendation.
