The Humminbird XI 9 1521 Chirp Ice Transducer brings Dual Spectrum CHIRP sonar to hardwater anglers who want a clear view of fish, their jig, and bottom structure beneath the hole. Its 15- and 21-degree beam angles operate across a 130-250 kHz frequency range, giving anglers focused 2D sonar coverage for working different depths and fishing situations. The 8-foot cable provides practical reach around portable electronics and ice shelters, making this transducer a useful choice for chasing walleye, perch, crappie, lake trout, and other winter species.

• Dual Spectrum CHIRP sonar
• 15° and 21° beam angles
• 130-250 kHz frequency range
• 8 ft cable for ice setups
• Compatible with HELIX CHIRP units that features Ice Fishing mode, except for HELIX 12 CHIRP SI GPS, HELIX 12 CHIRP DI GPS, HELIX 12 CHIRP GPS
• Manufacturer's one-year limited warranty

The Humminbird XI 9 1521 Chirp Ice Transducer brings Dual Spectrum CHIRP sonar to hardwater anglers who want a clear view of fish, their jig, and bottom structure beneath the hole. Its 15- and 21-degree beam angles operate across a 130-250 kHz frequency range, giving anglers focused 2D sonar coverage for working different depths and fishing situations. The 8-foot cable provides practical reach around portable electronics and ice shelters, making this transducer a useful choice for chasing walleye, perch, crappie, lake trout, and other winter species.

• Dual Spectrum CHIRP sonar
• 15° and 21° beam angles
• 130-250 kHz frequency range
• 8 ft cable for ice setups
• Compatible with HELIX CHIRP units that features Ice Fishing mode, except for HELIX 12 CHIRP SI GPS, HELIX 12 CHIRP DI GPS, HELIX 12 CHIRP GPS
• Manufacturer's one-year limited warranty