I suggest you try Tower Hobby for their latest arrival, the Tactic 650, 6 channel and 2.4. I have two already and use one for buddy boxing others that have them. I have many radios some old and some not so old. There are 4.2 and 72. This Tactic 650 comes with two receivers and $150.00 tag. Lots of easy programing. I did not like it at first but changed mind very quickly.