In late 2010, the group started wearing lavaliere microphones on their striped vests.
From the orlandosentinel.com
Why doesn't someone make a wireless bluetooth lavaliere microphone?
From the sethgodin.typepad.com
Even while apart, their love blossomed, and when she returned, he gave her his Kappa Sigma lavaliere.
From the stltoday.com
This jade lavaliere necklace, made in the 1960s, was given to a Teufi client as a gift when she got married.
From the online.wsj.com
More examples
Jeweled pendant worn on a chain around the neck
A lavalier is a type of jewelry, consisting of a pendant, sometimes with one stone, suspended from a necklace.
A necklace with the sorority letters, often worn by members. Lavaliering is a process where a fraternity member would give his lavaliere to his girlfriend, as a sign of a serious relationship. Depending on the campus, this can be equal to "pinning".
A small microphone that can be clipped onto clothing or suspended from neck cords and worn in front of the chest.
A necklace with Greek letters on it. Sorority women can wear these necklaces with their sorority's letters, and many become lavaliered upon receiving a lavaliere from their boyfriend with his fraternity's letters.
Necklace bearing the letters of a fraternity/sorority.
Small, easily concealed, unobtrusive and aesthetically pleasing microphone, which is typically attached to clothing for interview settings.
Is a red necklace and a Stygian Abyss Artifact, a unique drop of the Slasher of Veils.
A delicate pendant(s) worn on or attached to neck chains.