BOYA PRO DIGITAL CAMERA-MOUNT WIRELESS OMNI LAVALIER MICROPHONE SYSTEM (2.4 GHZ) BY-WM4KEY_TAB

The Boya BY-WM4 PRO is a compact, entry-level wireless lavalier microphone system offering an easy-to-use, cost-effective, and all-inclusive solution for recording one subject to your camera, camcorder, or mobile device. The system delivers improved sound quality over the built-in mics on cameras and mobile devices to supply clear, intelligible speech for journalists, YouTube/Instagram creators, TikTok personalities, vloggers, and more.



Easy-to-Use System with Lavalier Mic & Bodypack Transmitter


  • The clip-on lavalier microphone features an omnidirectional pickup pattern that helps to deliver consistent audio levels even when the subject turns away form the mic.

  • The mic plugs into the lightweight bodypack transmitter, which runs on two AAA batteries.

  • An LED indicator on the unit shows power and low-battery level.


Compact, Dual-Channel Receiver

  • The compact receiver features a removable attachment clip that comes off to accommodate the included shoe mount for placement on your camera.

  • The receiver's input level can be adjusted to accommodate speakers at different volume levels.

  • A 3.5mm TRS cable for connection to a camera or camcorder is included. A 3.5mm TRRS cable for connection to a smartphone or tablet equipped with a headphone jack is also included.

  • The receiver features a 3.5mm headphone jack for monitoring.

  • For a two-person shoot, simply add another transmitter instead of buying a whole system. Since the RX4 Pro is a dual-channel receiver, it can simultaneously handle two TX4 Pro wireless transmitters (second transmitter available separately).

  • Up to 8 systems can operate simultaneously in the same location, but each system should be separated by at least 16.5' to avoid interference.

  • Additional receiver options that mount and plug in directly to your smarphone's digital input are also available including the BY-WM4 PRO RXD for Lightning and BY-WM4 PRO RXU for USB Type-C models.


In the Box

  • BOYA BY-WM4 PRO Digital Camera-Mount Wireless Omni Lavalier Microphone System (2.4 GHz)

  • RX4 Pro Receiver

  • TX4 Pro Bodypack Transmitter

  • Omnidirectional Lavalier Microphone

  • Alligator-Style Lavalier Mic Clip

  • Foam Windscreen

  • Camera-Shoe Mount

  • 3.5mm TRS Cable for Cameras

  • 3.5mm TRRS Cable for Mobile Devices