WE HAVE FOUND SOME LEFT OVER BERGS FULLY GONE OVER WITH NEWEST SOFTWARE Berg 4*dsp II reciever, 72Mhz, auto shift for all txs, tx signature recognition, full range.
Wow! Only 7 grams, full range high performance micro D.S.P receiver. Same high performance as the berg 5, including digital signal processing. Great for indoor or busy fly fields.