Garmin Waterproof Fishfinder 300C with 3.5-Inch Display and Dual-Beam Transducer Frequency = 80/200 | Resolution (VxH) = 320 x 240 | Screen Size = 3.5" | Speed/Temp = Temp Only | Transducer Type = Transom Mount | Waterproof Rating = Submersible | Watts RMS - Max = 150 | Included Transducer = Trolling Mount Transducer (dual beam)