TT-Bose. Tune Trapper Hidden FM Antenna compatible with all Bose Wave radios and systems. Hand Tuned to the FM band 88-108 MHz. Includes 6 feet of 75 ohm shielded cable terminated with a screw on F type male coax connector for older Bose systems and a 3.5 mm plug adaptor for newer Bose systems. 24 inches long and 1/2 inch in diameter.