Bin travel frequently and most recently this device is one of my most important. All electronic devices except for my laptop can I charge with what works perfectly. Camera Batteries anyway, my phone via the USB port + one of the supplied adapter, MP3 player or GPS logger with their own USB cables just plug on the moveable charging pins, batteries. It's also great that all the works in the car. Full buy recommendation from me for all those who want to take more than one device with you on holiday!