Only 5 hours of battery life; requires a 2.5mm adapter for standard 3.5mm headphones.
If you plan to use modern Skullcandy headphones with an older MP3 player: Best Skullcandy Earbuds by Use Case Mp3 Skull Candy
Since Skullcandy no longer makes standalone MP3 players, most users now pair with a separate MP3 player or use headphones with built-in storage features. Only 5 hours of battery life; requires a 2