Wanted: Step down Transformer for US Appliance- Nutribullet

I purchased a Nutribullet from someone on EF. I've been unable to find a step down transformer to get this thing up and running, can someone please help on where I can go to buy one?

The appliance voltage is 120 60 Hz. The machine is 600 watts so it requires an appropriate step down transformer to operate in Switzerland.

Thanks for your help