<b>Free parts and maintenance instruction video within 2 years.</b><br><p><b>SPECIFICATION</b><p> <b>Voltage--Rate/Max: </b>DC 12V<br> <b>Peak Thrust in LBS: </b>55LBS<br> <b>Power--Rated/Max: </b>600W<br> <b>Amp--Rated/Max: </b>50A<br> <b>Decibel level: </b>≤50 Db<br> <b>Shaft Type: </b>Cast Aluminum<br> <b>Shaft length: </b>≈54 inch<br> <b>Control Type: </b>Remote control<br> <b>Prop Type/Size: </b>3 Blade Prop / 9.3 inch dia.<br> <b>Prop Speed at full power: </b>Max 1250rpm underwater<br> <b>Depth Adjustment: </b>Depth collar<br> <b>Steering: </b>360 degree electric control<br> <b>Battery type (suggestion): </b>1 x 105AH deep cycle battery (battery not include)<br> <b>Max boat length (suggestion): </b>18ft<br>