Delivering the high-performance sonar anglers have come to expect from Lowrance, the cost-efficient X-Series fishfinders feature a full 4-inch Film SuperTwist LED display for easy viewing especially in direct sunlight, with 4-level gray scale definition for superior clarity and target definition, The Lowrance X-Series offers anglers single- and dual-frequency performance options for a variety of fishing and boating conditions, Lowrance X-4 Portable features the same sonar and display specifications at the Lowrance X-4 but is packed with a soft-sided portable kit, a D-cell battery holder (batteries not included) and a Skimmerr transducer with suction cup mount, The new performance X-Series models also feature innovative sonar technologies that make Lowrance fishfinders a favorite among anglers and boaters; including GRAYLINE for precision separation of fish from nearby structure and the bottom, Advanced Signal Processing (ASP) that automatically adjusts sonar settings to provide anglers with best picture, and FishTrack to display target depth readings above fish symbols, Ideal for fishfinding use anywhere, the X-4 Portable model sonar and screen features are identical to the X-4, and comes with a soft-sided portable kit that includes a battery compartment and Skimmer transducer with suction-cup mount, All X-series fishfinders are waterproof to the IPx7 standard and are protected by a one-year limited warranty, Scheduled availability: November 2010, Product : LOWRANCE X-4 FISHFINDER PORTABLE WITH TRANSDUCER, Manufacturer : LOWRANCE, Manufacturer Part No : 000-10228-001 SKU: CW39443