Not Just Sonar SideScan Fish Sonar Algorithmic Programming Instant Depth Readings English & Metric Calculations Instant Depth Updates Dry Seal Battery Housing Dual Temperature Readout SureGrip Housing Auto Readout Mode Manual Readout Mode ShootThru Technology SilverScreen Backlit LCD  Waterproof to 200 Feet Floatable Integrated Wrist Strap 2 Year Warranty       (Hover Over Features)