Once a year, you can roll it over. When you roll it over, you receive the funds to your checking account and then send a check to the new bank. You have 60 days to complete this. The next 1 year clock starts at the time of the rollover, not based on a calendar year.
Search for "HSA rollover" online and talk with the current provider to make sure you follow the process correctly.
You would still keep the employer-setup account open for future deferrals/match, but just once a year roll funds over to an account of your choosing. You can find one with either $1,000 or less minimum balance.
Hope this helps.