Product Name PORTABLE DOT MATRIX FISH FINDER-HANDHELD TRANSDUCER Product Type FD06B Product Description Display Type: FSTN LCD V128xH64 and White LED backlight Depth readings 2.0 to 240ft0.6-73meters in 1/10th precision Bottom contour and Water Temperature Indicator User able feet or meter readings Fish Icon Audible fish and depth alarm ,Depth Alarm 3-99ft(1~31meters) User able depth range and Zoom On/Off 200KHz Sonar Frequency 45-degree sonar beam angle 4 "AAA" Batteries Free Scan Transducer