I've heard that the vast amounts of metal that make up ships make FRS hard to use. I read a thread on here where post its were used a lot. Put one on the mirror with where you are going or where you want to be at a specific time, and also state that you should visit the cabin at such and such time to check or update said post its.
Disney Dream - Dec 2012 4n Bahamas
Carnival Imagination - Dec 2011 4n Western
Carnival Imagination - Nov 2010 4n Western
Costa Atlantica - Dec 2009 7n Eastern
My opinions are mine and mine alone. They do not represent the opinions of The Walt Disney Company nor any of its subsidiaries.
john makes a very valid point, there has to be an adult over the age of 25 registered in the teens cabin. Princess has a very good teen center, sign the kids up, depends upon the ages and maturity of your teens , our teens were older 15-17, they hung out together and we had specific check in and meeting times and places.