Specification:1) Display:2.4inch TFT color LCD2)Back lighting: On/off White LED3) Wireless operational Range: 328feet(100m)4) Power: 3.7V rechargeable lithium batteries5) Waterproof design: level-4(spray-water-proof)6) Wireless Sensor battery reauirement: one replaceable CR2032 battery7) Depth Capability: 147feet(45m) (Wireless mode), 328feet(100m) (Cable transducer mode)8) Sonar Coverage: 90 degrees beam angle in 125Khz (Wireless mode), 45 degrees beam angle in 200Khz(Cable transducer mode)9) Water depth,water temperature, fish location, bottom contour can be constantly obtained from the water10) User selectable sensitivity,zoom,units,depth range,shallow alarm,fish icon,fish alarm,and chart speed setting11) Built in memory stores sonar setting when the fish finder is turned off12) Wireless Sensor could shut down when it is out of the water13) Operational Temperature: 14degF to 122degF(-10degC to 50degC)Wireless operating range is 60m ,and detecting water depth is 45m.1.Wireless Signal 2.Sensitivity 3.Water depth 4.Water temperature 5Medium fish icon with water depth 6.Bottom contour 7.Left Arrow 8.W-Sensor Battery9.Battery strength indicator10.Depth upper limit11.Water surface12.Small fish icon with depth13.Large fish icon with fish depth14.Depth low limit15.Menu key16.Right arrow17.Power on/offProduct name: Fish finderDisplay: 2.4inch TFTcol LCDBlack lighting: On/off white LEDMaterial: ABSSonar Coverage: 90degree beam angle in125KHZDepth capability: 147feet/45mPower: 3.7V rechargeable batteryRechargable Transducer:1.Switch 1 for W-sensor 2. Working Indicator3.Charging Port 4.Switch 2 for fish attractive lamp: 5.Charging indicatorSPECIFICATION :1) Display:2.4inch TFT color LCD2) Back lighting: On/off White LED