The features found in the FLX-30BB read like the wish list of avid ice anglers starting with digital depth (only when used in normal or high power), Auto Range, Three zoom zones, three power levels, FIVE color palettes to select from for maximum visibility, five foot depth range adjustments starting at 10 feet, Maximum range of 300, Day and Night display brightness settings, Low power options for fishing in super shallow water, seven frequencies to choose from (160kHz to 300kHz). Performance, quality, innovation, and reliability, welcome to the amazing FLX-30BB. Vexilar's most popular winter fishing system is the Pro Pack II. This system offers great performance features in a super durable case with a built-in gimbal bracket to support your flasher. Complete with a 12 Volt Lithium, 9 amp-hour battery with charger. All FLX-30BB Pro Packs come standard with the powerful Broad Band Ice-Ducer transducer. The FLX-30BB is specifically designed to perform with this specific Vexilar Ice-Ducer.