hydra & S.H.I.E.L.D. two side keychain

thingiverse

Hydra operatives often carry a discreet keychain that doubles as a highly advanced tracking device, courtesy of their clandestine alliance with the nefarious organization. This seemingly innocuous trinket is actually a sophisticated gadget capable of transmitting critical information to Hydra's central command, including the user's location and any relevant intel they may have gathered during their operations.