deal for bottom contouring and mapping of lakes, rivers and creeks! Easy to use, simply turn it on and toss the floating transducer into the water, then view the screen for instant bottom structure and depth readings. Takes bottom structure, depth and fish readings from 3' to 120' . Other features include ShootThru technology which reads through boat hulls and ice, a battery saver mode, auto power off, a soft glow backlit display, 180° pivoting VirtuView LCD Icon Display, and a water resistant splashproof design. Unit includes a removable belt clip, storage bag, adjustable neck strap and a floating sensor with 35' of cable. Power: 4 AA Batteries for up to 20 hours battery life. Dimensions: 1.5y' x 2.8y' x 4.3y' . Display Size: 1.5y' x 1.8y' . Sonar Frequency: 200 KHZ. Sonar Angle: 20° . Backed by a 2-Year Warranty from the manufacturer.