BOYA BY-WM4 Pro K2 Digital Wireless Microphone

The Boya BY-WM4 PRO-K2 is a compact, entry-level wireless system with two lavalier microphones that offers an easy-to-use, cost-effective, and all-inclusive solution for recording two subjects 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 interviewers, journalists, YouTube/Instagram creators, TikTok personalities, vloggers, and more.

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Description

Features

  • For 2-Person Videos, Interviews, YouTube
  • 2 x Omni Lavalier Mics
  • 2 x Bodypack Transmitters
  • Compact Dual-Channel Receiver
  • Easy to Use, Plug & Play Operation
  • Adjustable Gain, Headphone Monitoring
  • 3.5mm Cables for Camera & Mobile Device
  • Runs up to 11.5 Hours on AAA Batteries
  • 8 Systems at Once Max, Up to 200′ Range

The package includes two omnidirectional lavalier mics and two bodypack transmitters with belt clips that allow your subjects to move around hands-free in front of the camera for interviews, demonstrations, presentations, and performances. The compact, dual-channel receiver offers a 200′ line-of-sight maximum operating range and includes an attachment clip and a camera shoe mount for flexible mounting options.

Connecting cables for both your camera and smartphone are included, while the 3.5mm jack on the receiver lets you plug in headphones for monitoring while you’re working on set. The transmitters and receiver are both powered by two AAA batteries for up to 11.5 hours and arrive pre-paired at the factory—just power up, plug the receiver into your camera or phone, and you’re ready to go.

 

Easy-to-Use System with Two Lavalier Mics & Two Bodypack Transmitters

  • The clip-on lavalier microphones feature omnidirectional pickup patterns that help to deliver consistent audio levels even when the subject turns away form the mic.
  • The mics plug into the lightweight bodypack transmitters, which run on two AAA batteries.
  • An LED indicator on the unit shows power and low-battery level.
  • Simply power On the receiver and transmitter to access reliable, two channel wireless audio functionality in an instant.

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 is also included.
  • The receiver features a 3.5mm headphone jack for monitoring.
  • The RX4 Pro is a dual-channel receiver so it can simultaneously handle both TX4 Pro wireless transmitters and output them to your camera or mobile device for recording.
  • 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 smartphone’s digital input are also available including the BY-WM4 PRO RXD for Lightning and BY-WM4 PRO RXU for USB Type-C models.

Brand

BOYA

Specifications

System
Wireless Transmission Digital 2.4 GHz
Included Transmitters 2 x Bodypack with Microphone
Diversity Non-Diversity
RF Frequency Band 2405 to 2478 MHz
RF Channel Scanning Auto-Scan
Max Operating Range 196.9′ / 60 m (Line of Sight)
Max Systems per Setup 1
Encryption None
Modulation GFSK
Receiver
Form Factor Camera-Mount
Mounting Options Belt Clip, Shoe-Mount (with Included Hardware)
Number of Audio Channels 2
Audio I/O 1 x 1/8″ / 3.5 mm TRS Female Balanced Line Output
1 x 1/8″ / 3.5 mm TRS Female Balanced Headphone Output
Frequency Response 35 Hz to 14 kHz
Word Clock I/O None
Power Requirements Battery
Battery Type 2 x AAA
Display & Indicators LED (Battery Status, Power, Sync, Transmitter Battery Status)
Dimensions 1.8 x 2.8 x 1.4″ / 45 x 70 x 35 mm
Weight 1.7 oz / 47 g
Transmitter 1
Transmitter
Form Factor Bodypack with Microphone
RF Output Power 3 mW
Audio I/O 1 x 1/8″ / 3.5 mm 3-Pin Female Input
Included Cable Connector 1/8″ / 3.5 mm TRS
Auto-Level Control No
Approximate RF Sensitivity -90 dB
Power Requirements Battery
Battery Type 2 x AAA
Approx. Battery Life 11.5 Hours
USB/Lightning Connectivity None
Display & Indicators LED (Battery Status, Power, Sync)
Dimensions 1.8 x 2.8 x 1.4″ / 45 x 70 x 35 mm
Weight 1.7 oz / 47 g
Microphone
Form Factor Lavalier
Sound Field Mono
Polar Pattern Omnidirectional
SNR 84 dB
THD 0.05%
Output Connectors 1 x 1/8″ / 3.5 mm 3-Pin Male
General
Packaging Info
Package Weight 1.135 lb
Box Dimensions (LxWxH) 9 x 6.7 x 2.2″

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