Fish Finder CHIRP Sonar Technology, Resolution: 272 X 480 4.3 Display QSVGA Display, Markway Point Wattage: 300W, CV20-TM Transducer, Sonar Frequency: 55/77/200/260/455/800kHz, Split Screen Zoom, 300W(RMS) Supported Frequency: - CHIRP Mid & High) - Traditional: 50/77/83/200 kHz - ClearV 260/455/800 kHz, Maximum Depth: - Salt Water: 830 feet - Freshwater: 1,750 feet, IPX7 Waterproof, Supersonic, Split Screen Zoom, Ultrascroll, Fish Symbol ID, Split Screen Zoom, Auto Gain Technology, Adjustable Depth A-scope, Built-in GPS, Durable design with Built-in water temperature sensor.