Cannon Digital-Troll IV Transducer: * Cycle function to automatically jig the weight up and down * Bottom tracking mode to keep the weight at a certain distance from the bottom * Memory can even store up to 5 different depths and automatically deploy or retrieve the cannonball at different speeds * Agile low-profile swivel base * Backed by a limited lifetime warranty * Retrieve memory lets you program retrieve rates of 110", 150" or 250" per minute * 20 lb weight capacity * 250" per minute retrieval rate * Positive ion control with adjustable voltage * IP68 waterproof power cable connector * Short-stop safely stops weight retrieve at waterline * Heavy-duty telescopic boom extends from 24"-53" * 3-digit digital depth counter * Low voltage warning * Ball storage hook prevents boat damage from swinging weights * Pre-spooled with 400" of camouflaged 150 lb test 316-grade stainless steel cable * Saltwater-resistant construction * Material content: stainless steel * Made in the USA