The BOYA BY-VM190P has a super-cardioid pickup pattern to capture audio from the front, while minimizing pickup from the sides and rear. It’s compact and lightweight design with a rugged construction that's ideal for use with HDSLR cameras, camcorders, and audio recorders. Integrated shockmount conveniently mounts the microphone onto any camera accessory shoe while effectively suppressing handling and vibration noise. Three gain settings(-10dB, 0dB, +10dB) help adjust the level of sound capture whether from a close-up or long shot, while a bass roll-off switch cuts low-frequency noise. One 9 Volt battery can be used for approximately 100 hours.

　　wireless communications

　　what is wireless communication

　　wireless communication system

　　microphone wireless

　　wireless radio

　　singing microphone

　　history of wireless communication