A straight plug is better when the jack is on the top or bottom of your player.
52% have it
16. has an over-the-ear form
Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
42% have it
17. travel bag is included
The device comes with its own special case or pouch, which is useful for safe transportation.
63% have it
18. has a coiled cord
A coiled cord typically offers more flexibility as it can be extended, and taken outside for example.
8% have it
19. has a 3.5mm male connector
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.