Describe your ideal mp3 player

I still haven’t found a player close to what I want. i pretty much want what I stated in the first post, except FM HD radio would be enough, I don’t need AM, and I would prefer having 2 micro SDXC card slots instead of one full sized one. Longer battery life is also important. With other brands making mp3 players having battery life in the 40-110 hour range, having just 15 or 24 hours of battery life(less in real world use) doesn’t match up well.