Plane Double chime (seatbelt?) Shared by Krabby Caption ThisMix AudioTrim AudioDownload AudioDownload VideoFiled UnderOther, Sounds, 1 7 0 0 That distinctive two-tone chime you hear on airplanes, probably the seatbelt sign or some kind of cabin announcement alert. It’s that quick, polite ding-ding that gets everyone’s attention without being annoying. Embed