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BOYA BY-WM4 Pro-K1 Digital Wireless Lavalier / Lapel Microphone for Smartphone , DSLR (2.4 GHz ,Up to 60m)

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  • BOYA BY-WM4 Pro-K1 Digital Wireless Lavalier / Lapel Microphone for Smartphone , DSLR (2.4 GHz ,Up to 60m)
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RRP: $199.00
$169.00 (You save $30.00)
Calculated at checkout

 Product Description

The BOYA BY-WM4 Pro-K1 Digital Wireless Microphone is designed for videographers on a limited budget and video hobbyists, BY-WM4 PRO system is a new generation 2.4 GHz wireless microphone, dual-Channel for capturing audio with dual subjects to your smartphones, tablets, DSLR cameras, consumer camcorders, PCs etc.

It’s a compact and extraordinarily easy-to-use wireless microphone system for recording crisp and clear speech, and interviews. Omnidirectional lavalier mic included is suitable for performers who which to exhibit freedom of movement in their visual recordings. Additionally, the system offers a up to 60m (197ft) line-of-sight operation range.

BY-WM4 Pro-K1 consists of one compact body-pack transmitter (TX4 Pro), a portable receiver(RX4 Pro), a Lavalier/lapel microphone, an omnidirectional lavalier microphone, a 3.5mm TRRS audio cable and a 3.5mm TRS audio cable, which provides immediate out-of-the-box operability for anyone, making it ideal for video, podcast, and mobile journalism applications.

The receiver is built with 3.5mm mic and 3.5mm headphone output jacks. The bodypack transmitter includes a MIC jack and LINE IN jack.


  • Dual-Channel Wireless Receiver allows working two transmitters at the same time.

  • Digital 2.4 GHz Frequency Brand

  • Super-clear recording sound

  • Compatible with smartphones,DSLR cameras consumer camcorders,PCs etc.

  • Lightweight and compact for easy carrying

  • Omnidirectional lavalier microphone

  • Hard case included

  • Standard camera shoe mount and clip included

  • Up to 60m(197ft)operation range (without obstacle)

  • Power supplied by two AAA batteries for transmitter and receiver

  • For mobile Journalists, Vloggers, YouTubers, Padcasters and more





 Brand  Boya
 Model  BY-WM4 Pro-K1 
 RF Modulation  GFSK (Gauss frequency Shift Keying)
 Frequency band  2.4GHz (2405-2478MHz)
 Frequency response  35Hz-14KHz±3dB
 Signal/Noise  84dB or more
 Distortion  0.05% or less (32Ω,1 KHz,65mW output)
 RF output level  3mW
 Earphone output level 32Ω,65mW
 Reception sensitivity -90dB +/- 3dB / 0dB=1V/Pa, 1kHz
 Audio input connector  3.5mm mini jack
 Operation range  60m (197ft) (without obstacle)
 Power requirements  3V DC (Two AAA size batteries)
 Consumption power
  •  Transmitter: 3V/70mA 
  •  Receiver:3V/70mA
  • Transmitter: 45 x 70 x 35 mm 
  • Receiver: 45 x 70 x 35 mm
  • Transmitter: 47g 
  • Receiver: 47g

Package Includes


1 x BOYA BY-WM4 Pro-K1 Transmitter

1 x BOYA BY-WM4 Pro-K1 Receiver

1 x Lavalier / Lapel Microphone 

1 x 3.5mm to TRS Audio Output Cable

1 x 3.5mm to TRRS Audio Output Cable

1 x Cold Shoe Mount

1 x Clip 

1 x Carry Case

1 x User Manual




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