This product is either discontinued or we cannot get that from suppliers.
Brand: Garmin, Model: 010-10931-00, Type: Antenna, Colour: Black, Compatible: Alpha 100 / Alpha 200, Handheld Only / Alpha 200i / Astro 430 / Tread.
This powerful remote antenna magnetically mounts to your vehicle and connects to your compatible handheld so you can track your dogs while driving. The antenna is 16 inches (40.6 cm) tall. The cable is 11.5 ft (3.5 m) long.