S-thread transmitter beacon bracelet

The S-thread transmitter beacon bracelet, often called the S-thread transmitter bracelet and alternatively referred to as a cloaked binary beacon, was a type of bracelet that was worn by both General Leia Organa and Rey. Anticipating the Resistance's imminent relocation, Organa provided Rey with the bracelet; its purpose was to enable Rey to pinpoint the location of the Resistance fleet after she had located Luke Skywalker.