A thru-hull CHIRP transducer perfectly suited for smaller fishing boats. The B765LM provides the performance of the larger transducers but in a compact package for smaller boats. A great combination of low and medium frequency bands provides a wide range of depth capability and fish finding. The low frequency band provide excellent depth penetration while the medium frequency excels at detail like bottom structure and tight holding fish targets in mid depth. The included high performance fairing improves broadband performance at speeds over 30 knots (34 mph). The B765LM transmits across the following bandwidths – low frequency 40 to 75 kHz, medium frequency 80 to 130 kHz.