Feature: 1. Color screen display, high definition, easy to read and convenient to use. 2. Depth reading from 2.0 to 131.2ft in 0.3ft precision. 3. Bottom contour and water temperature indicator, practical to use. 4. 10 levels sensitivity setting, automatic and manual selection of depth range. 5. Automatic zoom and shortcut keys manual zoom, allows to lock screen freely. 6. Users can customize measuring units: meters or feet. 7. With big/small fish identification and depth indicator. 8. Fish sentiment and depth sound alarm, depth alarm set range: 1-36 meters/3.3-118.1ft. 9. Wireless transmitting/receiving frequency: 433 MHz, the maximum receiving distance of wireless signal is up to 100 meters/328.1ft. 10. 125KHz sonar frequency, which has stable performance. 11. The host and sonar are powered by built-in lipo battery and equipped with USB charging cable. The charging voltage is 5V. 12. 17 menu languages: English, Chinese, Japanese, French, Korean, Russian, German, Dutch, Swedish, polish, Finnish, Greek, Spanish, Italian, Danish, Czech, Portuguese. Specification: Condition: 100% Brand New Item Type: Fish Finder Material: ABS Model: FF288W Signal Reception Distance: Approx. 100m/328.1ft Detection Depth: Approx. 40m/131.2ft Detection Angle: 90 ° Probe Battery: Built-in Rechargeable Battery Host Battery: Built-in Rechargeable Battery Available Time on Full Charge: 8H Menu Languages: English, Chinese, Japanese, French, Korean, Russian, German, Dutch, Swedish, Polish, Finnish, Greek, Spanish, Italian, Danish, Czech, Portuguese Screen Size: Approx. 2.4 x 40 x 50mm/0.1 x 1.6 x 2in Sonar Frequency: 125khz Display Type: Color Screen Wireless Transmitting/Receiving Frequency: 433 MHz Depth Alarm Set Range: 1-36 meters/3.3-118.1ft. Package List: 1 x Fish Finder Screen1 x Probe 2 x USB Charge Line1 x English Instruction1 x Hanging Rope