T-H Marine HydroWave H2 System Mr. Crappie Edition w/14ft Cord. Crappie HydroWave enhances your fishing experience with live-action sounds that attract crappie and bait fish. Designed by angler Wally Marshall this device replicates natural feeding sounds to increase your catch. Specifications for T-H Marine HydroWave H2 System Mr. Crappie Edition: Manufacturer: T-H Marine Size: One Size Features of T-H Marine HydroWave H2 System Mr. Crappie Edition Features natural sounds of crappie feeding and bait fish for optimal attraction. Includes a waterproof speaker with a 14ft cord for versatile placement. Comes with mounting hardware a user guide and a warranty card for easy use and peace of mind. Package Contents: T-H Marine HydroWave H2 System Mr. Crappie Edition Waterproof speaker T-H Marine HW-PKG-H2MRCRAP: HydroWave H2 System Mr. Crappie Edition w/14ft Cord