ANT 021 on August 26, 2015 | Marketing Team RUBBER DUCKIE ANTENNA Rubber Duckie Antenna, 72-76 MHz FM, 9" long. Use with large-area FM transmitters. Screw-to-PCB style connector. Shipping: 9" x 3⁄8" x 3⁄8", 0.08 lbs. PRODUCT HIGHLIGHTS Williams Sound offers a wide selection of high-quality accessories — from earphones/headphones to microphones to batteries/chargers. Each product is rigorously tested and approved for quality, reliability and compatibility with Williams Sound systems.