Intercom function up to 2 people it allows communications up to 2 people in full duplex up to 10 meters the range of btx1 fm is 10m created for rider and passanger conversations talk 2 all universal intercom function like all the next generation devices btx1 fm matches with any intercom of any brand fm radio bt next has built in fm radio in addition to the rds function it allows the storage of 6 radio stations stereo of course