This is the 4-TH (Square) to 4-TH (Square) Trainer Cord from Tower Hobbies. FEATURES: Allows the connection of a transmitter with new square mini trainer plug to a transmitter having the same type of plug INCLUDES: One Tower Hobbies 4-TH (Square) to 4-TH (Square) Trainer Cord REQUIRES: Connecting between the two trainer ports of each transmitter SPECS: Length: 10.2" (311cm) COMMENTS: For the 4-TH to Old (square to round) trainer cord, order TOWM6082. This trainer cord can be used with HiTech radios as "students". If using Hitec radios as a "teacher" radio, use HRCM8310 cord. It is recommended that the "student" radios should be shut OFF. jxs 11/17/04 ir/jxs