Thank you for using the Slingbox Answers Forum. To set up the new Slingbox M1, the device you use to set up (phone, tablet or PC/Mac) will need to be on the same local network as the Slingbox. Once the network is set up, you can finish audio/visual setup remotely.
In your scenario - you would need a family member in the US, where the Slingbox M1 is located, to do at least the network setup. You can stream from your device remotely, once setup is complete. Make sure setup is done on the same account you will be streaming from.
I hope this answers your questions. Let us know if you have any further questions.
PM @ Sling Media