TECH NOTES This is the Antenna for the Transmitter (TACJ0401) used with the HeliMax Axe EZ Micro EP Heli. FEATURES: Telescopes from 6.5" (165mmm) to 38.5" (978mm) Female threads inside antenna base INCLUDES: TX Antenna used with the HeliMax Axe EZ heli REQUIRES: Threading into transmitter jxs 01/05/07 ir/jxs   BOX DIMENSIONS: 3.00" W. X .38" H. X 9.00" L. BOX WEIGHT: .07 LBS.