A Portable Teleporter is an item used for instant travel within and between dimensions. It requires a functional multi-block teleporter to link to.
A Portable Teleporter teleports you to a Teleporter that is on its channel, but it is only a one-way trip and cannot send you back. It needs to be charged at 500kJ to work using an Energy Cube. A Portable Teleporter cannot use a frequency used by two multi-block Teleporters, however, multiple players can have Portable Teleporters on the same frequency, allowing one multi-block Teleporter to accept several incoming players.