Welcome, I'm in Bangkok since 2013 with a retirement "O" visa with a Thai wife for 22 years from Virginia. I opted out on my part B medicare and I save and use for my medical visits etc. welcome to chat.
, I relocated and brought lots of equipments like musical amps microwave etc. I ended up buying step up transformers not cheap and inconvenient. Yes, check the back label of your devices. Most devices can.
Get an ideas google attractions and locations, how many days etc. create a plan itinerary the you can select a place to stay. You might need to take the train too!. I've got sister first time visiting from manila for 5 days hectic as they are seniors I did an plan and their previewing. I'm here to suggest. I love here now, my wife is Thai but we're expats.