Made by TomTom, not a cheap alternative.
The USB Home Charger plugs straight into the wall and lets you fast charge your device. Compatible with the TomTom ONE (Europe and Regional) and ONE XL (Europe and Regional) and many other devices.
It can connect to four different power sockets - US, UK, Europe and Australia as shown in the picture and accepts any supply from 100 to 240V AC to give an output of +5V 1.0A DC.
What may not be clear in the picture is that the cable is a detachable USB lead. This means that the USB socket in the power adapter can be used to charge other USB devices (mobile phone, MP3 player) using the cables supplied with those items.