1 : a chain or shackle for the feet
2 : something that confines : restraint
John keeps his smartphone with him when he goes hiking, but Linda leaves hers at home, preferring to free herself momentarily of the fetters of technology.
"At the moment, legally speaking, Internet cafes operate in Ohio without fetter or review." — From an editorial by Thomas Suddes in The Columbus (Ohio) Dispatch, December 2, 2012