The Trail Rider kit with radio allows you to mount your V3 handheld radio to your dash or roll bar and use it like a mobile radio.'The included large ducky antenna helps increase range, while the battery eliminator makes sure you always have power to the radio.'This kit is perfect for Jeeps, Trucks, 4x4 vehicles, trail vehicles, ranch vehicles, or even a motor home where you might be traveling with a group of friends.