With 4 x AAA batteries (not included battery) Fish and bottom contour readout: It detects and displays water depth, approximate fish location, short tall weeds, sand rocks on bottom. The device suits for variety fishing environments: It can be used for off shore fishing, boat fishing, ice fishing, lake fishing, sea fishing and so on. You can also use it on a moving with speed below 5mph Depth readout: The transducer detector range is in a 45cone underwater. The detection of depth range is from 3ft(1m) to 328ft (100m) below sonar sensor. The depth can be shown either in feet or meter. The transducer is with 25 ft cable and removable transducer float. Small fish finder with powerful functions: 5 modes sensitivity options; battery save mode; backlight mode; fish and fish school alarm. Normally it supports 4-5 hours continuous working with brand new batteries. Open battery save mode can be working even longer.
Package weight: 0.658 kg Product size (L x W x H): 12.00 x 7.00 x 2.50 cm / 4.72 x 2.76 x 0.98 inches Package size (L x W x H): 20.00 x 10.00 x 5.00 cm / 7.87 x 3.94 x 1.97 inches