- "You sure you don't want anything else? How about one of these quarter walkie-talkies? They have a built-in homing beacon."
- ―Antoine Triplett to Leo Fitz
The Quarter Walkie-Talkie is one of Antoine Triplett's grandfather's Howling Commando items, a walkie-talkie with an incorporated homing beacon concealed as a coin.
Antoine Triplett retrieved his grandfather's Howling Commando gear and offered it to Phil Coulson as a tactical advantage during the undercover investigation on Cybertek and the missions to come. The Quarter Walkie-Talkie was among these items.
Triplett suggested to Leo Fitz to take one of these Quarters when they got separated in Cuba, keeping Triplett another in order to use it as a beacon.
- In the comics, the Quarter Walkie-Talkie is an item used by HYDRA.