Boya BY-M1 Pro II 3.5mm Lavalier Microphone

Basic Information

  • Microphone Type: Lavalier Microphone
  • Sound Level: -10dB sound attenuation (meaning it can handle loud sounds and reduce ambient noise)

Switches and Controls

  • 0/-10dB Setting Toggle: Allows you to adjust the microphone’s sensitivity
  • Camera/SmartPhone Toggle: Allows you to switch between battery power and phone power


  • 78dB: The microphone can handle high signal-to-noise ratios, indicating good noise rejection

Main Specifications

  • Frequency Range: 50Hz~20KHz (human hearing range)
  • Sensitivity: -32±3dB (0dB=1V/Pa, 1KHz) (indicates the microphone’s ability to capture sound levels)
  • Output Impedance: <1000Ω (good impedance matching for most audio devices)
  • Weight: Approximately 2.33oz (66g) (lightweight and portable)

Cable and Connector

  • Cable length: 6 meters (20 feet)
  • Connector: 3.5mm connector with a 3.5mm headphone jack


  • Audio recorders: Yes, compatible with most audio recorders
  • DSLR cameras: Yes, compatible with most DSLR cameras
  • PC: Yes, compatible with most computers
  • Smartphone: Yes, compatible with most smartphones

Overall, this microphone seems to be a versatile and reliable option for capturing high-quality audio in a variety of settings. Its omnidirectional polar pattern makes it suitable for capturing ambient sounds, while its high signal-to-noise ratio and good impedance matching ensure clear and noise-free audio.



The Boya BY-M1 Pro II is a professional-grade lavalier microphone designed for universal use. Here are its key features:

Sound Quality

Omnidirectional polar pattern: Picks up sound from 360-degree directions
Frequency response: 50Hz~20KHz (wide range of sounds from low to high frequencies)
Sensitivity: -32±3dB (0dB = 1V/Pa, 1KHz)
Signal-to-noise ratio: >78dB (reduces background noise and enhances sound quality)


Output impedance: <1000Ω (to avoid signal loss)
3.5mm audio output jack (connects to camera, smartphone, laptop, or other devices)
3.5mm headphone jack (for monitoring sound quality and level)


Mic gain control: Adjustable from -10 dB to 0 dB (depending on distance and loudness of sound source)


Long 6-meter cable length for increased mobility
Clip-on design for easy attachment to clothing or objects

Overall, the Boya BY-M1 Pro II is a versatile and high-quality lavalier microphone suitable for professional use in a variety of applications, including film, television, theater, and more.