The high band operates across a frequency range of 150 to 250 kHz and has a fixed 25° beam for all frequencies. The low frequency band and 1 kW of power also provides great deeper water performance. Features: Depth and fast-response water-temperature sensor 1 kW for great deep water performance from the low frequency Low Frequency: 42 kHz to 65 kHz with maximum depth of 914 m (3000') 25° to 16° beamwidth High Frequency: 150 kHz to 250 kHz with maximum depth of 152 m (500') 25° constant beamwidth 123 kHz of total bandwidth from one transducer Covers popular fishing frequencies of 50 and 200 kHz plus everything else in the bandwidth High frequency provides superior shallow water performance, bottom detail and fish target separation High wide beamwidth provides more coverage under the boat for detecting fish in the upper water column Transom-mount transducer with stainless steel mounting bracket Recommended boat size: up to 10 m (32') Hull Type: Fiberglass, wood, aluminium or steel Also available in thru-hull (B275LHW) and pocket/keel mount (PM275LHW) models Exclusive Xducer ID technology