"1) Display: TN/ANTI-UV LCD   
2) Display size: 40Wx39H   
3) Small round transducer with 7.5m cable,45-degree beam angle   
4) Removable float   
5) Back lighting: Green LED backlight   
6) 4xAAA batteries, battery save mode, battery strength indicator   
7) High/Low sensitivity setting   
8) Depth Range Max/Min: 328Feet(100meters)/2Feet(0.7meters)   
9) Operational Temperature: -4F to 158F(-20C-70C)   
10) Fish depth scale, audible fish alarm   
11) User selectable meter or feet readings   
12) Waterproof design: level-4 (spray-water-proof)   
13) Able to shoot through boat hull and clear ice   
14)Bottom show:Show the bottom grass or rock   
15)Can resist the interference from the grass when use in lake  "