Unlike the more common and cheaper omni-directional version this is a high quality uni-directional cardioid microphone. A directional cardioid (180º) microphone picks up sound in the direction it is facing.
Headset Microphone Compatible with Sennheiser wireless microphone system
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Professional Handheld Style Unidirectional Condenser Microphone For Sennheiser Wireless BodyPack Transmitter 3.5 Mm Lockable Mic From 10,82 €
Products – Tagged 3.5mm locking jack plug – Micronic
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[Professional Audio Quality] Powerful, High sensitivity lavalier microphone amplifies your voice, stable signal, zero delay & crisp, vibrant audio
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Wireless Unidirectional Condenser Wireless Lavalier Microphone For Sennheiser Professional Handheld Style With Lockable BodyPack Transmitter 3.5mm Mic From Carlito, $11.52
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Wireless Unidirectional Condenser Wireless Lavalier Microphone For Sennheiser Professional Handheld Style With Lockable BodyPack Transmitter 3.5mm Mic From Carlito, $11.52