NOTE: I have been contacted by 'Ava' at Massdrop Support. Ava did not read my question. To repeat, USPS does NOT deliver packages to my address, so I need to know if this headphone will ship by UPS or FedEx.
'Ava' replied again, saying the same thing. This time I asked if Massdrop will refund my money when they ship by a non-delivery service like USPS, and USPS returns the package to Massdrop.