A teleport bracelet was a device used to teleport individuals to a different location.
The Twelfth Doctor, Clara Oswald, Psi and Saibra found teleport bracelets disguised as atomic shredders in the Bank of Karabraxos. (TV: Time Heist)
Mayor Me used a teleport bracelet to transport the Doctor (TV: Face the Raven) into his confession dial. (TV: Heaven Sent)
The Troxil Gamemasters used teleport bracelets. After paralysing a Troxil assassin, Vastra fiddled with its teleport bracelet to send it off of Earth. (PROSE: Assassin on the Railroads)