Now hear this. If you don't want to make some time consuming modifications to the PRC 148 MBITR dummys made by Toy Soldier and other manufacturers, Toy Soldier goes a step beyond and will soon release an MBTIR functional radio with PTT Button, LCD Display, and channel selection. It's at the 409MHZ range, and also comes with a functioning H250 U Handset. Something to get excited about but check first if the frequency is legally allowed without a licence in your country.