Headphones :)

Super-light in-the-ear design
High quality 13.5mm driver units for outstanding sound quality
Neodymium Magnets for Powerful Bass and Clear Treble Sound
Open air, dynamic

http://www.staples.com/office/supplies/StaplesProductDisplay?storeId=10001&jspStoreDir=Staples&AID=10422268&partNumber=710256&cm_mmc=CJ-_-affiliate-_-feed-_-listing&PID=500871&catalogId=10051&langId=-1

these are my favourite earphones because are better than the Apple ones that i had for my I-Pod nano!

also, they are very very cheap : $ 9,90 and you can chose between a lot of colors :)