Airmar B75M Bronze Chirp Thru Hull 20 Tilt - 600W - Requires Mix and Match Cable [B75C-20-M-MM]B75M Bronze Chirp Thru Hull 20 Tilt 600W Requires Mix and Match Cable Rely on Airmars broadband transducers for your ultimate fishing mission. Whether youre a commercial fisherman, charter captain, or tournament angler, theres a new game in town! Chirp transducers enable bottom detection down to 3,000m (10,000) with 5 to 10 times greater detail and resolution so precise its possible to distinguish between individual baitfish, game fish, and underwater