Hollyland Air-Duct Earphone for Solidcom M1

This is the earpiece you use when the comms have to be invisible. A clear acoustic tube runs from a small driver at the collar up to the ear, so on camera it reads as the same coiled tube a security detail wears rather than a black headset, and it disappears against most skin tones and backgrounds.

The eartip seals in the canal, which does two jobs at once: it blocks the room and it delivers the tube's output straight to the ear, so a stage manager can still hear a cue call over a loud crowd or a live band. It terminates in a 3.5mm plug for the Solidcom M1 beltpack, and it suits backstage, live streaming, field control and surveillance work where a visible headset is a problem.