My previous review knocked off one star due to the card not playing music after freezing up in -55°F temperatures in AK..... but after sitting on the counter for a while, it thawed out and started playing! AND the fact that it froze and didn’t immediately play worked out in my favor because the recipients assumed the music playing on an endless loop was due to exposure to subzero temperatures. They eventually ripped it open, glitter went everywhere, laughter ensued, everyone was happy (minus the husband who hates glitter lol). Fast forward 24 hours: their son put the internal components outside in the snow overnight and let it freeze again (for educational purposes, of course lol!) and when they brought it back in today, it unthawed a second time- wet from snow, and kept on going till they cut the wires. It was the best experience I’ve had out of the 5 cards I sent. So, it turns out they do, in fact, work near the Notth Pole!