Site-to-site transporter
A site-to-site transporter was a portable device that used transporter technology to allow the user to beam from one location to another without the use of a transporter pad. They were typically small hand-held devices or miniature models that could be worn on clothing, and were able to transport themselves along with the payload.

The emergency transporter armband and emergency transport unit performed similar roles for use in an emergency. (; )

History
In 2370, the Vorta operative Eris used a hidden portable untraceable long-range transporter device concealed in the left wrist of her jacket to escape from Deep Space 9. ()

In 2372, in an alternate timeline, Tom Paris had acquired a hand-held site-to-site transporter. He and Harry Kim used the device to transport from a San Francisco street to Harry's office at Starfleet Headquarters and from the office to the Earth Spacedock. This type of transporter beamed itself along with the transported personnel. ()

In 2374, Captain Kathryn Janeway used a site-to-site transporter to allow her and the Leonardo da Vinci hologram to escape from 's warehouse. ()

In 2375, the Borg drone One developed internal transporter nodes based on the 29th century mobile emitter technology. These implants could be utilized as a personal portable site-to-site transporter. () 

In 2379, emergency transport units, a type of miniature portable transporter technology, had been developed by Starfleet. They were designed to provide a single one-direction transport for one individual. During the Battle in the Bassen Rift, Jean-Luc Picard beamed from the Scimitar to the  using such a device. ()

See also 
 Portable transporter
fr:Téléporteur site-à-site
Transporter technology