16 original and new sound patterns for added versatility, the bass H2 offers five pre-programmed delay options ranging from 15 to 120 seconds. 2.5" LCD screen makes operation even easier, and features a new, sleek look. Easier to use and install, features an easy access expansion Port for additional sounds and a combined speaker, power cable plug-in. Used by majority of the Pro's on the top level circuits and tournament anglers across the us, the microwave has played a major part in many top finishes. An electronic feeding stimulator based on the reactive senses of bass and other predatory fish, HydroWave bass H2 delivers the latest in patented, sound-emitting technology, effectively imitating the audible underwater sounds of baitfish and fish-feeding activities. Research has proven these sounds stimulate feeding impulses in game fish. Tactile sound transmissions emitted by HydroWave h2's finely-tuned amplifiers are different from ordinary sounds because they are the sounds and vibrations that you can actually feel. Tactile sounds are what fish respond to. Emits sound waves that predatory fish feel, hear and sense as natural baitfish activities - to "Ignite a feeding Frenzy." biologists have long known fish hear and sense prey through a complex system that includes sound, vibration and pressure waves. Produces pressure, vibration and sound - combined in the right frequency to stimulate a feeding response. Sounds come programmed into the unit's software. No loading of programs and/or sounds required. Hydrowave H2 unit features a durable injection-molded housing that is 100-percent waterproof and withstands the constant pounding of rough boating conditions. Mounts easily on the boat's bow area with a bracket or Velcro. (Velcro not included) speaker is multi-directional and mounts on all models of trolling motors either the topside or underside of the trolling motor's lower unit for a perfect, hydrodynamic fit. (Clamp included). operates on a 12-volt power supply.