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.
Mini Lavalier Lapel Microphone Cardioid Condenser Mic For Sennheiser G1 G2 G3 G4 Wireless Bodypack Transmitter 1.2M 3.5 Mm Lock
Professional Handheld Style Unidirectional Condenser Microphone For Sennheiser Wireless BodyPack Transmitter 3.5 Mm Lockable Mic From 10,82 €
Products – Tagged AKG 3.5mm Locking Jack – Micronic
Sound Professionals Court Reporter wireless microphone system - 4 cordless transmitter/microphones and interface SP-COURT-REPORTER-WIRELESS-MIC -SYSTEM-4
New ME4-D1 Clip Lavalier Lapel Condenser Microphones For Sennheiser G1 G2 G3 Wireless Bodypack Transmitter
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Clip-on Lapel Microphone for Sennheiser G1 G2 G3 G4 Wireless Lavalier Mic
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Professional Lapela Condenser Microphone Lavalier Microfone for Car Amplifier Recording 3.5mm Mono Angle Jack Microphones Color: Mic
Wireless Unidirectional Condenser Wireless Lavalier Microphone For Sennheiser Professional Handheld Style With Lockable BodyPack Transmitter 3.5mm Mic From Carlito, $11.52
Lavalier Tie Clip Lapel Microphone For Sennheiser Wireless EW G1 G2 G3 System