1 item to bring

You just got transported to a new world. Fantasy world but more modern setting than medieval. You can bring 1 thing with you. Whatever it is it will work and perform as normal . Weapon Smart device Immunization Food Clothes Transportation

What's the item you would bring?

I personally would bring a Ipod with all the music. I feel like I could carve out a living by any means in that scenario but would die from sheer boredom.