Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › I found this weird device under my bed…. what is it? › No, a peizo speaker is sma
No, a peizo speaker is smaller than that. I think it may well be some kind of listening device, particularly if there are no manufacturing markings (brand, manufacturer, model number, etc.) on the plastic housing. Know of anyone with a broadband RF signal strength meter or a spectrum analyzer?