For optimal portability to ballfields.  Must have access to a pole of at least 2 1/4 inch diameter.  Includes chain locking Vise Grip to snap receiver temporarily onto a post.  Entire contents protected by hard shell carrying case.  Includes one Control Box, one Power Hitting Arm with 10 foot cable, one reciever, one chail locking Vise Grip, and Carrying Case.  Mounting hardware included.  Nine volt battery required.