Based on the hugely popular Engel Cooler/Drybox, the Engel Live Bait coolers add a 2-speed aerator pump that can run on batteries, 12 volts or 110 volts. Engel features best in class live bait wells that will keep your minnows and shrimp alive even while ice fishing or crappie fishing. Better than a bait bucket, these will not spill when knocked over and maintains internal temperature for longer.