Extend the range of your Garmin Alpha or Astro Dog Tracking System. This sturdy long-range antenna is a convenient 8.5 inches when collapsed, but extends to 42.5 inches when hunting conditions require maximum range. This long-range antenna features a rubberized, flexible base that provides enough "give" to help protect your antenna during use. Actual range varies depending on terrain and weather conditions. Connects directly to your Garmin Astro or Garmin Alpha handheld (no adapter or connector is required). Garmin handheld device not included.