a.k.a. ear bud, earphone, headphone, headsets, loudspeaker, single speaker, stereophones, cans
Earbuds are a pair of small headphones held inside of one's ears and connected to a signal source such as an an iPhone, MP3 player, or other device (sometimes an audio amplifier, radio, or CD player). These "in-ear" versions (specifically known as earbuds or earphones) differ from headsets in the sense that headsets are used to describe a combination of headphone and microphone used for two-way communication, for example with a telephone or VoIP service.
NetLingo Classification: Net Hardware