Best Lavalier Microphones for broadcast

On air the lavalier has to be invisible and it has to be redundant. Invisible means mounting under fabric without the rustle that clothing makes against a capsule, which is a mounting problem far more than a microphone problem. Redundant means the second one, because a lavalier failing during a live segment has no recovery.

That is why studios buy in pairs and mount two on the same guest, split to separate channels. It is also why omnidirectional beats directional here: an omni tolerates a guest turning their head, and a guest will turn their head.