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. Compatible Devices: * AlphaA(R) 100* AlphaA(R) 200* AlphaA(R) 200i* AlphaA(R) 300* AlphaA(R) 300i* AstroA(R) 220* AstroA(R) 320