Tips for glamping off grid?

[floridapalmtree]

Off for 3 nights in July to a farm, staying in a landpod.

It's off grid, the pod has bed and bedding, seating area, a usb charger and led lights, nothing else inside.

There's a composting loo and hot shower and a fire pit on site.

Any tips on what to take which we will need or make it more comfortable. For example how to listen to music?

You say that there’s a fire pit on site, but unless there’s also a Dutch oven or a fire pit grate (for grilling), you won’t really be able to use it for cooking. Anyway, it will be nice to sit around in the evening to keep you warm (and possibly toast marshmallows!). I’d take a fire starting kit if you plan to use it.
I’d also take a gas stove and a camping kettle/saucepans so you can have a hot drink.
It would be worth finding out if there are any places to eat within easy walking or driving distance, and make bookings before you go if necessary.
You could use portable Bluetooth speakers for music, but when I go camping I prefer to take wireless headphones as I know not everyone appreciates my taste in music, and I don’t want to irritate the neighbours.
I’d also take a lantern and a head torch for trips to the toilet. Take a potty if you have kids.