The All Call lets you put your electronic calling sounds right at the decoy where they'll be the most effective. Comes with a 25' speaker connection cord that plugs into any electronic caller with an external speaker jack. The All Call reacts with the sounds of the call, and this twisting and turning motion make it an irresistible decoy. Decoy height is adjustable from a flush mount to 16". Comes with its own nylon carrying bag and rock-like base to blend into its surroundings. Requires 4 AA batteries (not included)