Product details:

385ci DI Combo#408430-13.5 high-resolution 320Vx240H LCD color display with backlighting. Exclusive Dual - Beam PLUS technology provides 16 ° and 25 ° beams to see below the boat with better structure and bottom hardness definition. Use Down Imaging to reveal cover and structure detail below your boat.3.5 Display 320V x 240H, 256 Color - Down Imaging 455k - Hz / 75 ° @ -10db800k - Hz / 45 ° @ -10dbDualBeam PLUS w/ Switch - Fire 200k - Hz / 25 ° @ -10db455k - Hz / 16 ° @ -10db - Depth 250 ft (DI), 600 ftDualBeam PLUS 4000 W (PTP)Sonar Coverage500 W (RMS)GPS Receiver Precision GPSCartography Humminbird Uni - Map SD Card Slot Single