This fish finder is designed for the liker in fishing. It can detect both fish location and fish size in both fresh and salt water, and can be used as a depth sounder. Perfect for underwater activities such as undersea exploration, ocean fishing and ice fishing, etc. Features: Water depth, water temperature, fish location, bottom contour can be constantly obtained from the fish finder. Adjustable sensitivity for clear water and turbid water. Depth range, shallow alarm, fish alarm, and chart speed setting. High-contrast LCD and phone-like menus give you more time to spend fishing and less time dealing with settings. Wired transducer supports 180m depth detection with 45° beam angle in 200Khz. It can be mounted by sucker or bracket with screws provided. Come with a wireless transducer,It supports 45m depth detection with 90°beam angle in 125Khz. And its holes allows you to tie your fishing line onto it for easy casting. Specifications: Material: ABS Fish Finder: Battery: 8 AAA batteries (not included) Screen Size: 8.6 * 6.2cm / 3.4 * 2.4in Operation Temperature:-10°C to 50°C Wired Transducer: Cable Length: 8m Detection Depth: 180m Beam Angle: 45° Sonar Frequency: 200KHz Wireless Transducer: Wireless Transmission Range: 60m Battery: CR2032 Detection Depth: 45m Beam Angle: 90° Sonar Frequency: 125KHz Package Size: 30 * 25 * 20cm / 11.8 * 9.8 * 7.9in Package Weight: approx. 1500g / 3.3lb Packing List: 1 * Fish Finder (not waterproof) 1 * Fish Finder Power Cable 1 * Wired Transducer (with cable) 1 * Wired Transducer Sucker 1 * Wired Transducer Bracket (with 2 screws) 1 * Wireless Transducer (with a CR2032 cell battery inside) 1 * User Manual