Due to DualBeam PLUS, Humminbird`s Ice Helix 7 Sonar/GPS Combo delivers crisp images of both structure and fish. Brilliant 7" 256-color LED-backlit screen with a 480x800-pixel glass-bonded display. Flasher view with ice-specific settings. DualBeam PLUS sonar has a focused center beam and a second wider beam for both precision coverage and total coverage. Ice-fishing-specific 83/200kHz transducer. Target separation of 2.5" allows you to see fish stacking. Internal GPS chart-plotting uses built-in UniMap. Stores up to 2,500 waypoints and 45 routes. 2X RAM delivers fast map loading and screen refreshing. Depth capability to 600 ft. plus 4,000-watt peak-to-peak power. Single micro-SD card slot accepts compatible mapping from LakeMaster, Navionics and AutoChart software. IPX5 waterproof rating. Includes bag, shuttle, gimbal bracket, hardware and 12-volt 7AH battery with charger.

Features:

Switchfire
SwitchFire Sonar -- Take command of how your sonar returns appear with our Clear and Max Modes

Dualbeam Plus Sonar
Two beams combine for great detail and a wide coverage area. Use the narrow beam for high-accuracy returns and bottom. Use the wide beam when you want a larger search area.

Internal GPS
GPS antenna built into the head unit

Unimap Cartography
The Humminbird UniMap is a built-in map covering the contiguous US coastline, inland lakes and rivers at 30 meters per pixel resolution.

Micro SD Card Reader
Use for advanced cartography or to save screenshots, sonar recordings and waypoints or to update your units software.