Mics for Rooms with Echo: Cardioid vs Hypercardioid - YouTube
4080 Cardioid Condenser Lavalier Microphone
Amazon.com: piolunth USB Microphone, Plug & Play 192kHz/24bit Cardioid Condenser Studio Mic Kit with Professional Sound Chipset Mount Pop Filte and Boom Arm for Recording, Gaming, Streaming, Skype, Podcast : Musical Instruments
Amazon.com: MAONO USB Microphone Kit 192KHZ/24BIT AU-A04T PC Condenser Podcast Streaming Cardioid Mic Plug & Play for Computer, YouTube, Gaming Recording : Musical Instruments
What Is A Cardioid Microphone? (Polar Pattern + Mic Examples) – My New Microphone