"We have handheld radios in my world, too, which work on a different sound length than telephones, which might be closer to your handy-talkies," Jack says, given the name sounds much like "walkie-talkies". He finishes stuffing the clothing into his bag and turns to a cupboard. "I don't understand radio bandwidths well enough to explain them, I'm afraid. --Is there anything in particular you're looking for on this boat? Or are you just my bodyguard today?"