Works on any shortwave radio. Easy to use: first; clip COILSTAR onto your regular telescoping antenna or plug into your short wave radio jack. Immediately you'll hear what you've been missing. Now you have a GIANT RECEIVING TOWER at your beck & call no matter where you go. When finished at any location easily rewinds & fits again into your shirt pocket. The whole process takes less than thirty seconds. Can be extended to 23 feet, yet coils back up to fit in the palm of your hand. Works on ANY SW RADIO & is BETTER than ANY built-in antenna PERIOD!