The Fidelity Tax-Free Bond Fund (FTABX) is a mutual fund that primarily invests in tax-exempt bonds issued by state and local governments. This fund aims to provide investors with a steady stream of income that is free from federal income taxes. It may also invest in other fixed-income securities, such as corporate bonds and mortgage-backed securities. The fund is managed by Fidelity Investments, a well-known financial services company, and is suitable for investors seeking tax-efficient income and potential capital preservation.