Can you use two way radios in Honduras C.A. or any other type of
Communication that is portable?

Are you asking from a legal angle or are they electronically capable of woking? http://www.bearcomlatam.com/Walkie-Talkies.pdf Motorola makes an inexpensive walkie talkie that works anywhere but the people you are trying to reach must be capable of receiving that exact frequency. Most units have 20-30 frequencies but they come in UHF , VHF and other types of frequencies. You can't talk to a UHF from a VHF.

It would be used in the same household. The addition is in the backyard about
40 feet. The cobra's two way radios comes in a pair.