Long range... [ communication devices. Helios is terrible with technology but if he had to guess, something like a cellphone or the journals. ] I'm not sure actually. There's, um, people here who can probably build something like that, I'd imagine. M-Maybe even h-help you if-if you asked. The b-barrier though...I'm not sure where the intended t-target is for your device. B-But I don't know if the barrier would, um, mess up its...communication.