Great news! Every Tonie works with every Toniebox 1, so you can have a US Toniebox 1 and play EU Tonies, and vice versa.
The only difference between the Toniebox 1's is the included charging station. The US version of the Toniebox 1 charging station is only compatible with 120V outlets while the EU version of the Toniebox 1 charging station is compatible with 120-240V outlets.
As a result, if you would like to use the US charging station in a region that utilizes 220-240V outlets, you would need to use a converter, which would change both the voltage and also allow the plug to fit the outlet. The US charging station will work normally as long as you are using a voltage converter to bring the voltage down to 120V.
Please note: The Toniebox 2 comes with a universal USB-C Charging Cable.
If you have any additional questions, send us a message and we will be happy to help!