This arrived broken before we used it.  the electronics with in this were destroyed, totally fried.  It registered there was a battery, but the light kept blinking, and it wouldn't register to be programed.  the wiring was totally faulty.  furthermore, the lid and didn't fit quite right, and it was extremely light weight, it was clear that the compartments were not airtight, and that small paws could fit into the adjacent compartment. it was also not easy to reassemble, and i'm not sure how they intended the ice packs to work.  they were hard plastic, inflexible, and were poorly seemed, so they leaked when water was poured in them, so they wouldn't have frozen well and easily leaked.