3 Pack ECM 77 Clips Lavalier microphone clips are an essential item in any production. These lavalier microphone clips from were designed to be an affordable alternative for owners of the Sony ECM-77 microphone. They're nearly identical to the original clips, so you can rely on them in the field, on set, and on stage. Fits Sony's popular ECM-77 Fits Dia. 5.3 mm- 5.9 m and AT 898 Lavalier Microphone An inexpensive alternative for replacement clips.