B765C-LH Bronze Chirp TransducerRequires Mix and Match CableThru-hull bronze model with fairing. Same physical size as a B744V, with 600W power rating. Need mix and match cable. Depth and fast-response water temperature sensor. LH model has Low (40-75kHz) and High (130-210kHz) frequency bands. Please note: Does not work with NavicoThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. - cis2:mm5mnJlm -Specifications: Chirp: Low/High; Mounting Style: Thru-Hull; Box Dimensions: 4"H x 12"W x 16"L WT: 7.6 lbs; UPC: 801769001457;