Feature: 2.0" high-definition LCD color screen with LED backlight. Detect and display grass, short & tall weeds, sand, and rocks on seabed. Get the approximate location of fish and the depth of water. Round transducer sensor with 7.5 m cable and removable float, 45-degree beam angle. With fish depth scale and audible fish alarm. User selectable meter or feet readings. Range of depth readout up to 100 meters. Display bottom rocks or grass. Specification: Display: 2inch LCD color screen with LED back-lighting Depth range: 100m (328ft) Sensor Beam Angle: 45 degrees Powered by: 4 x AAA batteries (NOT included) Selectable between meter or feet readings Can mount the sonar with the following methods A. Fix it to the boat hull B. Use a float on the cable to mount the sonar inside the water C. Fix it on a poles and push it into the desirable position inside the water D. Cut a hole on the ice surface and place the sonar under the water Display the nature or circumstance of bottom of Sea (i.e. grass, rocks and sand) Dimension: 120 * 65 * 30mm / 4.7 * 2.6 * 1.2in Net weight: 163g / 5.7oz Package size: 260 * 175 * 65mm / 10.2 * 6.9 * 2.6in Package weight: 546g / 1.2lb Package Included: 1 * Fish Finder 1 * Tranducer with Cable 1 * Wing Nut 1 * Neck Strap 1 * User Manual