There may be other combinations, but this seemed to be the cheapest. The cases are throw ins, but they could be useful for you.
Add Spigen Core Armor Case for Galaxy Note20 Ultra 5G (Quantity: 2
Add Sony Wireless Noise Cancelling Over-the-Ear Headphones
When you go to the cart, it should discount the cases by $6 each, and the headphones by $105.
Total should be $272.97 + tax w/ Free 2-Day Shipping.
There may be a cheaper combination to get the 3 for 30% discount, but this was the cheapest I found. If you choose not to follow my links, just make sure you are selecting the Sony Headphones that are normally $349.99 as the SKU is for the XM4. The cheaper ones are not apart of the XM series.
Good luck to all