Featuresr wireless wi fi fish finder with wi fi range up to 50m supports all kinds of smart devicesr can be used as a fish finder and a depth sounderr working depth up to 45m underwaterr built in water temperature sensorr audible fish and depth alarmr with simulation moder with 90 degree beam angle accurately detects the fish locations and depth in both fresh and salt waterr 125khz sonar reception anti interference convenient to receive and transmit signalr detects and displays big