FEATURES . 22 Degree Sonar Beam Angle . 200KHz Sonar Frequency . LCD Display for Depth, Fish and Units of Measure Reading . Selectable units of measure in English and Metric . Depth Reading from 2.0ft to 200ft(0.8 to 60.9 meters) . Instant Depth Readings in the Nearest 1/10 Foot or Meter . Soft Glow low intensity LED backlight . Wrist Strap . Waterproof design . 4 ?AA? Batteries . Fish Alarm . Operation Temperature -20--50 Degress C . Drownproofing design . Fish indicator . Fish depth scale