I'm way into skiing and I'm looking for some small portable iPod speakers that I could throw into my Ski daypack for when I'm hiking mountains with my group so that everyone can get pumped, not just me. Was looking for any recomendations. It would have to be small and light, but still loud and be able to survive extreme weather conditions; mainly cold temps. I was looking at the wide array of options out there, but there's so many! Thanks.