From Team Fortress Wiki
Ear buds. What the hell am I supposed to do with ear buds? Play Sarah McLachlan at a guy until he gets so sad he dies?
— The Scout
Earbuds are a Miscellaneous item wearable by all classes. They appear as a stylized version of the white earbuds that normally come with various handheld Apple products. They are connected to the class via loose cords. When worn, white musical notes are intermittently seen playing from the Earbuds. The musical notes have no associated sound effect.
This item was awarded to players who launched Team Fortress 2 using the OS X operating system (at the time Mac OS X) between June 10, 2010 and June 14, 2010. The offer was later extended to August 16 before coming to an end.
June 10, 2010 Patch (Mac Update)
- Added Earbuds to the game.
July 1, 2010 Patch
- Added missing earbud particles for DX8 players.
October 6, 2010 Patch
- This miscellaneous item is now nameable.
December 2, 2010 Patch
January 3, 2011 Patch
February 9, 2012 Patch
- Relaxed equip region restrictions for the Earbuds so that they can be equipped with anything (Changed equip region from "ears" to "earbuds_special").
- ↑ http://www.teamfortress.com/macupdate/earbuds/