Color Screen Boat Using Fish Finder FF688C： 
1) Display type: 3.5" 18 bit TFT V320xH240 with white LED front light 
2) Superb viewing in direct at sun
3) Multi-language menu (English; Russian; French; Chinese; Japanese; Finnish; Polish; German; Italian; Spanish; Dutch; Korean; Swedish; Greek; Danish; Portuguese; Czech) 
4) Depth reading from 2.0 to 1000ft (300 meters) in 1/10th precision 
5) 100-level sensitivity setting and multi levels depth range 
6) Auto zoom bottom tracking and quick manual zoom 
7) “Stop chart” at any time 
8) Big/small fish identification and fish depth indicator 
9) User selectable sonar chart mode 
10) Kell offset 
11) 200KHz / 83KHz duel beam sonar frequency 
12) Input power: DC 10 to 18V 
13) 1800 watts peak-to-peak power; 240 watts RMS power 
14) Transducer: side hull transform mount 
15) Water proof connecter between main unit and transducer