These pmr446 radios the motorola xtnid is the direct replacement for the old motorola xtn446 two way radio working on the pmr446 frequency the motorola xtni is still a license free radio and can communicate with other pmr446 business two way radios also as the motorola xtnid works off the pmr446 frequency you can use as many motorola xtnid two way radios together as you wantthis robust two way radio with a durable metal chassis the motorola xtnid two way radio is built to withstand even t